If there are four Amos in between [the small Mavuy and the big Mavuy], it is distanced [so a Lechi or Korah is needed for each one].

(R. Hoshayah - Beraisa): If openings [from a Mavuy] to Reshus ha'Rabim became breached on Shabbos, their place becomes Reshus ha'Rabim. If they became locked, their place becomes Reshus ha'Yachid;

Mavo'os open to the sea are like open to a valley. (They need Lechi or Korah on one side, and Tzuras ha'Pesach on the other.)

The street of R. Chanin (it was open to the sea) does not need Tzuras ha'Pesach, for the slope rises 10 Tefachim amidst three [Amos, so it is like a wall]. They made a Tikun [Tzuras ha'Pesach] for it due to the houses below (far from the slope, lest it look like they carry without a Heter).

(Mishnah): If it has Tzuras ha'Pesach, even though it is wider than 10 Amos, he need not diminish it.

Chananyah bar Shilmiya was sitting and teaching [this to] Chiyah, Rav's son. Rav stuck his head out of the window, and said "this is not so.'' (Even if it has Tzuras ha'Pesach, if it is wider than 10, it must be reduced.)

Chananyah asked "should I not teach this to [your son]?'' Rav said "teach him, but inform him that this is not the Halachah'' (PNEI MOSHE).

(Ava bar Huna): Tzuras ha'Pesach is a stick on each side and [even] a reed rope on top of them.

(R. Yanai bei R. Yishmael citing Reish Lakish): It needs Tzir and Ken Tzir (a hinge-pin, i.e. a pole on which a door swings, and a base to house the bottom of the Tzir, i.e. a hole below in the floor). It must lack only a door.

(R. Chiyah - Beraisa): How do we permit [a Mavuy Mefulash to] Reshus ha'Rabim? R. Yehudah says, he puts a Lechi on this side and a Lechi on the other side, or a Korah on this side and a Korah on the other side;

Chachamim say, he puts a Lechi or Korah on this side, and Tzuras ha'Pesach on the other side.

(R. Yirmeyah citing R. Shmuel bar Rav Yitzchak): [Tzuras ha'Pesach] needs Tzir and Ken Tzir. It must lack only a door.

R. Yirmeyah said this in front of R. Ze'ira;

R. Ze'ira: What do you have?! (Your teaching is not the Halachah.) R. Ila said in the name of R. Yochanan that Tzuras ha'Pesach that [Chachamim] said is a stick on each side and [even] a reed rope on top of them.

(R. Yosah): Rabanan here (in Eretz Yisrael) hold like their opinion [elsewhere], and Rabanan there (in Bavel) hold like their opinion [elsewhere];

Rabanan there, who say that Tzuras ha'Pesach that was said is a stick on each side and even a reed rope on top of them, and they say that the Halachah does not follow [our Mishnah, that Tzuras ha'Pesach permits an opening more than 10 Amos];

Rabanan here, who say that it needs Tzir and Ken Tzir, and it must lack only a door, they say that the Halachah follows [our Mishnah].

(Chananyah ben Achi R. Yehoshua): Beis Shamai say that [a Mavuy Mefulash] needs a door on this side and a door on the other side, and when he enters or leaves, he locks it;

Beis Hillel say, [it suffices] a door on this side and a Tzuras ha'Pesach on the other side.

(Shmuel): The Halachah follows Chananyah ben Achi R. Yehoshua.

Question: Is this is not like the first [Beraisa, in which Chachamim obligate Lechi or Korah on one side, and Tzuras ha'Pesach on the other? Since they do not obligate locking the door, a door is no more than Tzuras ha'Pesach, which must include Tzir and Ken Tzir!]

Answer (R. Ba): Through a door, he can lock it [and block traffic. We explained this like PNEI MEIR.]

R. Acha ruled for people who make Tzuras ha'Pesach must enter it inside [the Mavuy] four Amos. (Since it is merely a stick on each side and one on top of them, if it is close to traffic of Reshus ha'Rabim, it is prone to be knocked down - SHA'AREI TORAS ERETZ YISRAEL. This does not apply to a Korah, which rests on the walls of the Mavuy.) R. Eivun ruled like this.