On the evening of the fourteenth [of Nissan] they search the house for chametz by the light of a lamp. Every place into which chametz is not brought does not require searching, So why did they rule: two rows of the wine cellar [must be searched]? [This is actually] a place into which chametz might be taken. Bet Shammai say: two rows over the front of the whole cellar; But Bet Hillel say: the two outer rows, which are the uppermost.

They need not fear that a weasel may have dragged [chametz] from one room to another or from one place to another, for if so, [they must also fear] from courtyard to courtyard and from town to town, and there would be no end to the matter.

The Gemara proceeds to analyze a more fundamental aspect of the mishna: And do we say that one need not be concerned that perhaps a weasel dragged the leaven? But isn’t it taught in the last clause, in the next mishna: With regard to the leaven that one leaves after the search, he should place it in a concealed location, so that it will not require searching after it? Apparently, there is concern lest a weasel take some of the remaining leaven.

Abaye said: This is not difficult; this ruling is referring to the fourteenth of Nisan, whereas that ruling is referring to the thirteenth. The Gemara elaborates: On the thirteenth of Nisan, when bread is still found in every house, the weasel does not conceal the leaven, and therefore there is no concern that perhaps the weasel dragged the leaven elsewhere and concealed it. However, on the fourteenth of Nisan, when bread is not found in any of the houses, the weasel hides the leaven.

Rava said in surprise: And is the weasel a prophetess that knows that now is the fourteenth of Nisan and no one will bake until the evening, and it leaves over bread and conceals it in its hole? Rather, Rava rejected Abaye’s answer and said: With regard to the leaven that one leaves after the search, he should place it in a concealed location, lest a weasel take it before us and it will require searching after it. Only if one actually sees the weasel take the leaven, is he required to search after it.

Rava raised a dilemma: If one saw a mouse enter with a loaf in its mouth, and he saw a mouse leave with a loaf in its mouth, what is the halakha? The Gemara elaborates: Do we say that this mouse that entered is that same mouse that left and there is no more leaven left in the house? Or perhaps it is a different mouse.

The Gemara adds: If you say that this mouse that entered was this one that left, another dilemma arises: If one saw a white mouse enter with a loaf of bread in its mouth and a black mouse leave with a loaf of bread in its mouth, what is the halakha? Do I say this is certainly a different mouse, or perhaps the black mouse took the loaf from the white mouse?

The Gemara continues to suggest variations on this case: And if you say that mice do not take from each other, as one mouse is generally not significantly stronger than another, if one saw a mouse enter with a loaf of bread in its mouth and a weasel leave with a loaf of bread in its mouth, what is the halakha? Do I say that the weasel certainly took it from the mouse, as it is larger and stronger? Or perhaps it is a different loaf, for if it is so, that the weasel took the loaf from the mouse, the mouse itself would also be found in its mouth, as the weasel would presumably take not only the loaf of bread but the mouse as well.

And if you say that we accept the contention that if it is so, that if the weasel took it from the mouse the mouse itself would be in its mouth, in regard to a case where one saw a mouse enter with a loaf of bread in its mouth and a weasel leave with both a loaf of bread and a mouse in its mouth, what is the halakha? Do I say that this is certainly the same mouse and loaf, or perhaps even this conclusion can be disputed: If it is so, that this is the same mouse, the loaf would have been found in the mouse’s mouth rather than in the weasel’s mouth. Consequently, this must be a different loaf of bread. Or perhaps the loaf of bread fell from the mouse’s mouth due to its fear and the weasel took it separately. No satisfactory answer was found for these dilemmas and the Gemara concludes: Let them stand unresolved.

And Rabbi Ami said: Come and see how great the faithful people are, and how God assists them. From where is it derived? From the story of the weasel and the pit. Once a young man saved a girl who had fallen into a pit. After rescuing her they swore to remain faithful to each other, and they declared the pit and a passing weasel their witnesses. As time went by the young man forgot his vow and married another woman. They had two children, both of whom died tragically, one by falling into a pit and the other when he was bitten by a weasel. Their unusual deaths led the young man to realize his error and he returned to the first woman. And if this is the outcome for one who believes in signs from a pit and a weasel, all the more so for one who has faith in the Holy Blessed One.

Rava raises additional dilemmas: If a weasel entered the womb and swallowed the fetus there, and then exited the womb, bringing the fetus out in its stomach, what is the halakha? The Gemara interjects: Is there any doubt about a case where the weasel brought the fetus out in its stomach? In such a case it is the weasel that brought it out, and it is certainly not regarded as though the fetus opened the womb. Rather, the dilemma concerns a case where the weasel swallowed the fetus and brought it out, and then brought it back into the womb and vomited it out while inside the womb, and the fetus subsequently emerged of its own accord. What is the halakha in this case? …The Gemara does not provide a resolution for these dilemmas and concludes: The dilemma shall stand unresolved.

And it was also taught in a baraita that Rabbi Shimon ben Elazar said: It is not necessary to protect a live day-old baby from a weasel or from mice, for they run away from the baby. But if Og, the king of Bashan, is dead, it is necessary to protect even him from a weasel or from mice, as it is stated: “And the fear of you and the dread of you shall be upon every beast of the earth, and upon every bird of the heavens” (Genesis 9:2). The Gemara explains: As long as a person is alive, he is feared by the animals. Once he dies, he is no longer feared.

Perutiyot [mules regarding which it is uncertain whether the mother was a horse or a donkey] are forbidden [with each other], but the ramakh [a mule whose mother is a horse] is permitted. Adnei Hasadeh [man-like creatures] are like wild animals [the laws of wild animals apply to them, i.e.they do not impart uncleanliness in a tent]. Rabbi Yosi says, They convey uncleanliness in a tent like a human being. The hedgehog and the weasel of the bushes are [considered] wild animals. [With regard to the] ‏weasel of the bushes, Rabbi Yosi says, Beit Shammai say, the size of an olive [of its carcass renders the person carrying it] impure, and the size of a lentil [of its carcass] renders the person touching it impure.

The Sages taught that the verse: “Nor shall you practice divination nor soothsaying” (Leviticus 19:26), is referring, for example, to those who divine and receive guidance according to what happens to a weasel, to birds, or to fish.

With regard to the verse: “And the elders of Moab and the elders of Midian set out with their divinations in their hands, and they came to Balaam” (Numbers 22:7), it was taught in a baraita: Midian and Moab had previously never had peace between them, and they were always at war with each other. What led them to make peace at that time? There is a parable of two dogs that were with the flock, and they were hostile to one another. A wolf came and attacked one. The other one said: If I do not help him, today he kills him and tomorrow he comes to attack me. They both went and killed the wolf. Moab and Midian joined together to face the potential common threat, the Jewish people. Rav Pappa says that this is in accordance with the adage that people say: A weasel and a cat made a wedding from the fat of the luckless. Despite their hatred of one another, they join together for their mutual benefit at the expense of a third party.

Ordinary harps are susceptible to impurity, but the harps of Levites are clean. All liquids are susceptible to impurity, but the liquids in the Temple slaughtering house are clean. All scrolls convey impurity to the hands, excepting the scroll of the Temple courtyard. A wooden toy horse is clean. The belly-lute, the donkey-shaped musical instrument and the erus are susceptible to impurity. Rabbi Judah says: the erus is susceptible to sitting impurity since the wailing woman sits on it. A weasel-trap is susceptible to impurity, but a mouse- trap is clean.

A flask that one has left uncovered and on returning found it to be covered, is invalid. If one left it covered and on returning found it to be uncovered, it is invalid if a weasel could have drunk from it or, according to the words of Rabban Gamaliel, a snake, or if it was possible for dew to fall into it in the night. The hatat waters are not protected by a tightly fitting cover; But water that had not yet been mixed with the ashes is protected by a tightly fitting cover.

What do they examine? Deep drains and foul-smelling waters. Bet Shammai say: even garbage dumps and crumbled earth. Bet Hillel say: any place where a pig or a weasel can go requires no examination.

If a domesticated beast or a wild animal drank from it, it becomes invalid. All birds cause invalidity, except the dove since it only sucks up the water. All creeping things do not cause invalidity, except the weasel since it laps up the water. Rabban Gamaliel ruled: the snake also because it vomits. Rabbi Eliezer ruled: the mouse also.

§The Gemara continues to discuss creatures living in a particular environment. The Sages taught in a baraita (Tosefta, Kilayim 5:10): For every animal that exists on land there is an equivalent animal in the sea, except for the weasel, which exists only on land. Rabbi Zeira said: What is the verse from which it is derived? It is written: “Listen all you inhabitants of the world [ḥeled]” (Psalms 49:2). Dry land is called ḥeled because it is the sole habitat for the weasel [ḥulda].

R. Elazar was in accord with the opinion of the Tanna, Issi b. Juda, who taught: "Since the Torah says (Exodus 34:24) ‘Yet shall no man desire thy land,’ it is to be implied that the cow shall feed in the pasture and no beast shall harm it, the chicken shall dig in the rubbish and no weasel shall harm it."

And these are tereifot in a bird: One with a perforated gullet, or with a cut windpipe that was cut across its width; or if a weasel struck the bird on its head in a place that renders it a tereifa, as one must be concerned that the membrane of the brain was perforated; or if the gizzard was perforated; or if the small intestines were perforated. In a case where a bird fell into the fire and its innards were singed [neḥmeru], if they turned green they are unfit, and the bird is a tereifa, but if they are red the bird is kosher. If a person trampled the bird, or slammed it against a wall, or if an animal crushed it and it is twitching, it is a tereifa because its limbs were shattered. But if the bird lasted for a twenty-four-hour period, and then one slaughtered it, it is kosher.

And these are kosher among birds: If a bird’s windpipe was perforated or cracked lengthwise; or if a weasel struck the bird on its head in a place that does not render it a tereifa; or if the crop was perforated. Rabbi Yehuda HaNasi says: It is kosher even if the crop was removed. If the bird’s intestines emerged from the abdominal wall but were not perforated, or if its wings were broken, or if its legs were broken, or if the feathers on its wings were plucked, the bird is kosher. Rabbi Yehuda says: If the down covering its body was removed, it is a tereifa and unfit for consumption.

These are the entities whose skin has the same halakhic status as their flesh: The skin of a dead person, which imparts impurity like his flesh; and the skin of a domesticated pig, which is soft and eaten by gentiles, and imparts the impurity of an animal carcass like its flesh. Rabbi Yehuda says: Even the skin of a wild boar has the same status. And the halakhic status of the skin of all of the following animals is also like that of their flesh: The skin of the hump of a young camel that did not yet toughen; and the skin of the head of a young calf; and the hide of the hooves; and the skin of the womb; and the skin of an animal fetus in the womb of a slaughtered animal; and the skin beneath the tail of a ewe; and the skin of the gecko, and the desert monitor, and the lizard, and the skink, four of the eight creeping animals that impart ritual impurity after death. Rabbi Yehuda says: The halakhic status of the skin of the lizard is like that of the skin of the weasel and is not like that of its flesh. And with regard to all of these skins, in a case where one tanned them or spread them on the ground and trod upon them for the period of time required for tanning, they are no longer classified as flesh and are ritually pure, except for the skin of a person, which maintains the status of flesh. Rabbi Yoḥanan ben Nuri says: All eight creeping animals enumerated in the Torah have skins whose halakhic status is not that of flesh.

They said three things before Rabbi Akiva, two in the name of Rabbi Eliezer and one in the name of Rabbi Joshua. Two in the name of Rabbi Eliezer:A woman may go out [on the Sabbath adorned] with a “golden-city”; And they that fly pigeons are unfit to bear evidence. And one in the name of Rabbi Joshua: If there was a creeping thing in the mouth of a weasel when it walked over loaves of terumah, and it is doubtful whether it touched them or whether it did not touch them, that about which there is doubt remains pure.

A person’s ladder must not be kept within four cubits of [his neighbor’s] dovecote, lest a weasel (a small animal that eats doves) should jump in. His wall may not be built four cubits from [his neighbor’s] roof-gutter, so that the other can set up his ladder [to clean it out]. A dovecote may not be kept within fifty cubits of a town, and none may build a dovecote in his own domain unless his ground extends fifty cubits in every direction. Rabbi Judah says: Four kor’s space of ground, which is the length of a pigeon’s flight. But if he had bought it [and it was built already in that place] and there was only a quarter-kab’s space of ground, he has a right to the dovecote.

The Gemara answers: It is in accordance with the opinion of this tanna, as it was taught in a baraita that Isi ben Yehuda says: With regard to that which the Torah said: “And no man shall covet your land, when you go up to appear before God your Lord three times in the year” (Exodus 34:24), this teaches that your cow shall graze in the meadow and no beast will harm it, and your rooster shall peck in the garbage dump and no weaselshall harm it. In other words, your property will be protected while everyone ascends to Jerusalem for the Festival, despite the fact that the farm will not be defended.

Rav Nahman said: pride does not befit women. There were two proud women, and their names are hateful. The name of one was 'bee' (Deborah), and the name of the other was 'weasel' (Huldah). It was written about 'bee' (Judges 4:6) "And she sent and she called for Barak." But she did not go to him. It was written about 'weasel' (II Kings 22:15) "Say to the man." But she did not say 'say to the king'.

The Gemara raises a difficulty: But why is this so? Let us say that the weasel ate the bread it took. Didn’t we learn in a mishna: The residences of gentiles are ritually impure, as their wives may have miscarried, and due to the fact that gentiles would bury their stillborn babies in their houses, all their residences are deemed ritually impure due to the possibility of impurity imparted by a corpse. And how long must a gentile have stayed in a residence for the residence to require searching? He must have lived there for forty days. The reason is that until forty days after conception the miscarried fetus is not classified as a stillborn, as it is not sufficiently developed before that stage.

Rabbi Zeira said: This is not difficult, as in this case, where no search is required, it is referring to flesh, whereas in that case, where one is required to search again, it is referring to bread. Rabbi Zeira elaborates: With regard to flesh, a weasel does not leave remnants behind, and therefore the stillborn would have been entirely consumed. With regard to bread, however, the weasel leaves remnants behind, requiring an additional search.

This mishna continues: And this decree applies even though the gentile resident has no wife. In issuing the decree, the Sages did not distinguish between a married couple and a single man, so that people would not err in its application (Me’iri). And any place where a weasel or a pig can enter unimpeded need not be searched, as presumably if a stillborn was buried there, one of these animals would have taken it. As this mishna indicates that there is a presumption that weasels eat whatever they find, the Gemara suggests that the same should apply to leaven. Therefore, even if one actually saw the weasel take the bread, he can assume that the animal ate it, obviating the need for an additional search.

Rava said: What is this comparison? These cases are not comparable. Granted, there, with regard to the stillborn, one could say that it was in the house and one could say that it was not in the house. And even if you say it was there, say that the weasel ate it. The very presence of the stillborn in the house is based on an assumption, and even if it was there, it was probably consumed. However, here, where one definitely saw the weasel take the bread, who will say that the weasel ate it? It is a conflict between an uncertainty whether or not the weasel ate the bread, and a certainty that the bread was there. The principle is that an uncertainty does not override a certainty.

and a priest came and glanced at the baby to ascertain whether it is male or whether it is female, as a woman who has just given birth, even to a stillborn, is ritually impure for different lengths of time, depending on whether she gave birth to a male or a female (see Leviticus 12). And the incident came before the Sages, to rule whether or not the priest contracted ritual impurity when standing over the corpse, and they deemed him ritually pure. The basis for this ruling was due to the fact that as a weasel and a polecat [bardelas] are found there, it is likely that the baby was dragged away before the priest arrived at the pit.

And yet here, where it is certain that she threw the stillborn baby into the pit, and it is uncertain whether a weasel or polecat dragged it away and it is uncertain whether it did not drag it away at that time, the Sages nevertheless ruled that an uncertainty comes and overrides a certainty. The Gemara rejects this contention: Do not say in the baraitathat she certainly threw a stillborn into a pit; rather, say that she threw an object similar to a stillborn into a pit. Perhaps it was not a stillborn baby; it might have simply been congealed blood, which does not transmit impurity. And therefore, this is a conflict between uncertainty and uncertainty. It is unclear whether there was anything in the pit that could have rendered the priest ritually impure, and even if there was, it might have already been dragged away.

And if you wish, say instead: There it is not a conflict between certainty and uncertainty; rather it is between certainty and certainty. Since a weasel and a polecat are found there, they certainly dragged it away at that time, without delay. Although weasels leave part of their food, in any case they certainly dragged the baby to their holes at that time. Another version of this answer: Although we do not say that they certainly ate the stillborn, we do say that they certainly dragged it to their holes. Consequently, the ruling in this case does not contradict the general principle that an uncertainty does not override a certainty.