The Sages taught: Three sounds travel from the end of the world to its other end, and these are: The sound of the sphere of the sun, and the sound of the bustle of the crowds of Rome, and the sound of the soul at the moment that it leaves the body, which should be audible throughout the world. And some say: Even the sound of a woman giving birth. And some say: The sound of Ridya as well.

And some say: Ridya as well. - The angel tasked with irrigating the earth, who calls to the heavens and to the aquifers to provide their water.

The Gemara cites another proof: Come and hear a resolution from the incident involving the seven teachings that were first said on Shabbat morning before Rav Ḥisda in Sura and then repeated toward the conclusion of that Shabbat before Rava in Pumbedita, despite the fact that the distance between them is too great for someone to have traversed it on Shabbat. Who said those teachings? Was it not Elijah the Prophet, who traveled from Sura to Pumbedita by way of a miraculous leap through the air above ten handbreadths from the ground, who said them? Apparently, the prohibition of Shabbat limits does not apply above ten handbreadths, for Elijah would not have transgressed this prohibition. The Gemara rejects this argument: This is no proof; perhaps Yosef the demon, who does not observe Shabbat, reported these teachings and brought them from Sura to Pumbedita.

My Teacher, Rabbi Yehuda HeHasid, said that gremlins believe in the Torah and do everything the sages said.... [his students] asked a question based on this Gemara that mentions Yosef the Gremlin, from which we see that gremlins don't keep Shabbos. He answered them that the Gemara is talking about a case where there was one gremlin in Sura and Yosef the Gremlin was in Punbedisa, and the first gremlin spoke to him through a long, hollow tablet, and then Yosef the Gremlin said it before Rava in Pumbedisa, and there is no doubt that gremlins observe even rabbinic teachings.