Study Eruvin folio 85A with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
If a cistern in a small alleyway between two courtyards is separated by 4 handbreadths from the wall of one courtyard and by 4 handbreadths from the wall of another courtyard, the resident of this courtyard may extend a ledge of minimal size from his window in the direction of the cistern, as a sign
Abaye said to Rav Yosef: This ruling of Rav Yehuda, that some minimal sort of adjustment is required, is in accordance with the opinion of his teacher, Shmuel. Since if he holds in accordance with the opinion of his other teacher, Rav, this would present a difficulty, as didn’t Rav say: One person
The Talmud asks: And from where is it ascertained that this is the opinion of Shmuel? If you say we learn it from that teaching which Rav Naḥman said that Shmuel said: With regard to a low roof adjacent to a public domain, there must be a fixed ladder from the courtyard to the roof in order to perm
Rather, Shmuel’s opinion is learned from this statement: This one, the resident of one courtyard, may extend a ledge of minimal size and draw water from the cistern through his window; and the resident of the other courtyard may also extend a ledge of minimal size and draw water through his window.
The Talmud asks: And from where is the opinion of Rav learned, that one person does not render it prohibited for another by way of the air? If you say it is derived from that which was taught in a Mishnah: If two balconies extend over a body of water, one above the other, and the residents erected