Study Eruvin folio 77A with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
And R' Yoḥanan said: These residents of one courtyard may raise food from their courtyard to the top of the wall and eat it there, and they may lower the food from the wall to the courtyard; and those residents of the other courtyard may raise food from their courtyard and eat it there, and they may
We learned in the Mishnah: If there was produce on top of the wall, these residents of one courtyard may ascend from this side and eat from it, and those residents of the other courtyard may ascend from that side and eat from it. The Talmud infers from this: To ascend, yes, it is permitted, but to
The Talmud answers that this is what the Mishnah is saying: If the top of the wall between the two courtyards is 4 by 4 handbreadths, then to ascend, yes, it is permitted. However, to raise food, no, it is prohibited, because in that case the top of the wall is considered a domain in its own righ
And R' Yoḥanan followed his line of reasoning in this regard, as when Rav Dimi came from Eretz Yisrael to Babylonia, he said that R' Yoḥanan said: With regard to a place that does not have an area of 4 by 4 handbreadths and is situated between a public and a private domain, it is permissible for bo
The Talmud asks: And does Rav, who prohibits carrying in that case even as much as a hair’s breadth, not accept the opinion of Rav Dimi in this matter? The Talmud answers: If this referred to an exempt domain situated between two domains by Torah law, i.e., between a public and a private domain, s