The Sages taught in a baraita with regard to the verse: “Remember the day of Shabbat to sanctify it” (Exodus 20:7): Remember it over wine, through the recitation of kiddush. I have only derived that there is a mitzva to recite kiddush during the day, as the verse is referring to the day of Shabbat. From where do I derive that one must also recite kiddush at night? The verse states: “Remember the day of Shabbat to sanctify it,” which indicates that one should also remember Shabbat as soon as it is sanctified.

Rava said, and some say it was Rabbi Yehoshua ben Levi who said: Even an individual who prays on Shabbat evening must recite the passage: “And the heavens and the earth were finished [vaykhullu]” (Genesis 2:1–3), as Rav Hamnuna said: Anyone who prays on Shabbat evening and recites the passage of vaykhullu, the verse ascribed him credit as if he became a partner with the Holy One, Blessed be He, in the act of Creation. As it is stated: “And the heavens and the earth were finished [vaykhullu].” Do not read it as: Were finished [vaykhullu]; rather, as: They finished [vaykhallu]. It is considered as though the Holy One, Blessed be He, and the individual who says this become partners and completed the work together. Rabbi Elazar said: From where is it derived that speech is like action? As it is stated: “By the word of God the heavens were made, and all of their hosts by the breath of His mouth” (Psalms 33:6).

(1) It is biblically mandated positive commandment to sanctify the Sabbath with speech, as it is written (Exodus 20, 7): "Remember the sabbath day, to keep it holy." i.e. Remember through remberance of praise and through Kiddush. And it must be remembered when it begins and when it ends. When it begins - with Kiddush, and when it ends - with Havdala.

How is this done? You take a cup that can hold a revi'it (4.5-8 oz.) or more, that is clean inside and outside, and fill it up with wine and hold it in your right hand, and raise it up at least a tefach (~ 4 in.) or more. Bless over the fruit of the vine and then over the sanctity of the day. And it is a widespread custom among Jews to say the paragraph beginning Vayechulu (Gen. 2:1) and then bless the wine and then the day. And then drink a full cheek's worth, and then pour for everyone at the table and then wash hands and bless the bread and eat.

(1) ...When he arrives at his home, he should hurry to eat the meal immediately...

(2) Women are obligated in Kiddush, even though it is a positive commandment that time causes (meaning, a positive commandment dependent on time), because Remember is compared to Guard. And these women since they are included in watching, they are include in remembering. And they can discharge men (from their obligation) since they are obligated biblically, like them.

(3) If he has not the means (finances) at hand to purchase wine for Kiddush and to prepare the needs of the meal for both the meal at night, the meal on Shabbat day and Kiddush for Shabbat day, it is better to purchase wine for the night Kiddush rather than to purchase needs for meals or wine for Kiddush on Shabbat day. For as it is taught: "The honour of the day precedes the honour of the night, this is only with regards to other needs of the meal. However if he does not have more than one cup for Kiddush, then the honour of the night is prioritised over the honour of the day.

(4) It is forbidden to taste anything before one makes Kiddush [at night], even water. And even if one began eating while it was still day, he needs to stop eating, spread out a tablecloth [to set up the meal] and make Kiddush. And if they were drinking wine first, they only need to say the Bracha of Kiddush and not a Bracha on the wine. Afterward they will make a Bracha on the bread. And if he does not have wine, he can make Kiddush on bread, he need not make a Bracha on bread [because he has already been part of a meal where bread was eaten]. There are those who say that even if he makes a Bracha on wine, he also need not make a Bracha on the bread.

(5) Two people who were drinking and then said "Come, let us make Kiddush", they are forbidden from drinking more until they make Kiddush. If they want to return and drink before they make Kiddush, even if they are required, need to again make the Bracha on the wine and then they can drink. Edit: A person who forgot to make Kiddush and realised only after he make the Bracha on the bread, and yet remembered before he ate; should make Kiddush on the bread and then eat it. But, if it was Havdalah, he should first eat the bread - for we do not make Havdalah on bread.

(7) ...Even if it is forbidden for one to taste food before Kiddush, if they did taste food, they should still make Kiddush.

(8) If one did not make Kiddush at night - whether it was unintentional or intentional, he must make up for it the next day. Edit: And he should say all of the text of Kiddush of the night, except for "Vayechulu"

(9) There needs to be a tablecloth on the table underneath the bread and another cloth spread out on top of the bread.

(10) One should make Kiddush on a full cup of wine... ...And he says Vayechulu while standing, and then "Creator of the fruit of the vine" and then kiddush. Gloss: One can stand for kiddush, but it is preferable to sit (Kol Bo). Our custom is to sit while saying Vayechulu, but when we begin we stand a little to honor God's name, because when you begin, Vayechulu Hashamayim, God's name is hinted at in an acrostic...

(13) One must drink a cheekful from the Kiddush cup, i.e. if one moves all the wine to one side of their mouth and their cheek appears full, and this is the majority of a Revi'it.

...And he says Vayechulu while standing, and then "creator of the fruit of the vine" and then kiddush. Gloss: One can stand for kiddush, but it is preferable to sit (Kol Bo). Our custom is to sit while saying Vayechulu, but when we begin we stand a little to honor God's name, because when you begin, Vayechulu Hashamayim God's name is hinted at in an acrostic.