Study Eruvin folio 85B with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
and the middle ruin is prohibited to both of them.
Rav Beruna sat and stated this halakha in the name of Rav. R' Elazar, a student of the Torah academy, said to him: Did Rav actually say this? Rav Beruna said to him: Yes, he did. He said to him: Show me his place of lodging, and I will go and ask him myself. He showed him where Rav lived. R' Elaz
R' Elazar then said to Rav: Since you prohibit using the middle ruin, you evidently maintain that one person renders it prohibited for another by way of the air. That being the case, it must be that you permit the resident of each house to use the adjacent ruin because one’s use of the ruin, while n
Rav said to him: Do you think that we are dealing with a case of 3 ruins positioned alongside each other in a straight line? No. They are arranged in the form of a tripod, i.e. in a triangular form. In other words, two of the ruins, each adjacent to one of the houses, are located next to each other;
Rav Pappa said to Rava: Let us say that Shmuel, who maintains that one renders it prohibited for another by way of the air, does not agree with the opinion of Rav Dimi. When Rav Dimi came from Eretz Yisrael to Babylonia, he said that R' Yoḥanan said: A place less than 4 by 4 handbreadths in size is