(Mishnah): If one put an Eruv in a Beis Sha'ar, Achsadra or porch, it is invalid, and one who lives there does not forbid;

[If one put an Eruv] in a cattle pen or storehouse for straw, wood or produce, it is valid, and one who lives in one of these forbids [if he does not give towards the Eruv];

R. Yehudah says, if the owner has Tefisas Yad (rights of usage), the one who dwells there does not forbid.

(Gemara - Rav Yehudah citing Rav): This refers to a Beis Sha'ar of Rabim, but a Beis Sha'ar of an individual, an Eruv placed there is valid, and one who lives there forbids you. (We explained this like MEICHAL HA'MAYIM and HA'GAON RAV C. KANIEVSKY, SHLITA.)

(d'Vei R. Yanai): Even a peg to hang his shoe on it [is Tefisas Yad].

(R. Ba bar Chinena): Even a [writing] tablet or pieces of metal [are Tefisas Yad. We explained this like R. Chananel.]

(Rav): It must be something that one may move it on Shabbos.

R. Ba: A case occurred in which someone had a chicken coop in his friend's house. He could enter without his friend's permission. The case came in front of Rav;

(Rav): Since he needs to put water in front of [the chickens], it is like something that one may move it on Shabbos (it is Tefisas Yad).

Version #1 (R. Yakov citing Shmuel): R. Yochanan's Talmidim went to Achbari [on Shabbos]; they relied on R. Yanai's teaching.

Version #2: Chizkiyah said differently. Rather, R. Chiyah, R. Asi and R. Ami went to Achbari, and heard from R. Yanai's house that the Halachah follows R. Yehudah.