(mishnah): If a limb of the Korban Pesach protruded out of Yerushalayim, the flesh must be cut down to the bone and peeled back until it reaches a joint, and then it is cut.

For other sacrifices, he may chop it off with a cleaver, as there is no prohibition to break a bone.

Inside of the Agof (where the door rests when it is closed) is considered inside; outside of the Agof is considered outside.

The windows in the wall and the thickness of the [top of] the wall itself are considered inside.

(gemara) - R. Simon / R''YBL quoting Bar Pedayah: Pigul and Nosar combine to cause a person's hands to become Tameh, if it is the amount of a Kzayis, which is the quantity for which a person would usually be punished if he ate them.

Question: Would this combination make Terumah Pasul if they touch it?

Answer: It is a Kal Vechomer - if they cause hands to become Tameh which can then make Terumah Pasul, certainly they themselves can make Terumah Pasul?!

Question: This limb that protruded out of Yerushalayim, is it Pasul like Pigul and Nosar that it will make hands Tameh, or not?

If you say that a limb that protruded out makes hands Tameh (like Pigul and Nosar), Pigul and Nosar do not make Terumah [or Kodshim] Pasul;

If Pigul and Nosar make Terumah [and Kodshim] Pasul then a limb is dissimilar to them;

As if not, meaning that a limb is Tameh and causes Tumah, the outer part of the limb should make the inner part Tameh!

Answer (r. Avin): Really Pigul and Nosar make Terumah Pasul and a limb also makes Tameh; but the outer part does not make the inner part Tameh since it is "Tumas Beis HaS'tarim'' - if Tumah is internal, it cannot be Metameh. Is it not R. Meir who holds this view?

Question: Did R. Yochanan not say about any item that became Tameh and was torn open, if the majority separated it is not considered connected? Here also, once he cuts most of it, the rest is also considered cut - therefore, it is not considered Beis HaS'tarim (internal)!

Answer (r. Chananya): Here he cut off a minimal amount and discarded it (therefore, the cut part is never the majority).

R. Ba quoting Rav Yehuda: They did not sanctify under the Agof (underneath the gates of the city) of Yerushalayim (with the Kedushah of Machaneh Yisrael).

Reasoning (r. Yirmiyah quoting Rav Shmuel bar Rav Yitschak): In order that those with Tzora'as could shield themselves from the sun in the summer and from the rain in the winter.

A similar case: They did not sanctify under the Agof of Har HaBayis in order that the Zavin could shield themselves from the sun in the summer and from the rain in the winter.

Question: A Metzorah is understandable, as he may not enter Yerushalayim to find protection; but a Zav does not need to shield himself underneath the Agof since he may enter Yerushalayim?!

R. Yochanan bar Madaya quoting R. Pinchas: Since we see that the Rabbanan put their sandals underneath the Agof of Har HaBayis, this shows that they did not sanctify there.

Query (rav to R. Chiya Rabah): What is the status of the roofs of Yerushalayim (do they have the Kedushah of Yerushalayim)?

Answer: People say as a parable - "There were such a large groups of people designated on the Korban Pesach that each person only received a Kzayis''.

R. Yirmiyah/R. Maisha/R. Shmuel bar Rav Yitschak quoting Rav: The roofs of Yerushalayim are not sanctified.

Question: But our Mishnah teaches - Inside of the Agof is considered inside; outside of the Agof is considered outside - this implies that anything inside, even the roof, is sanctified?

Answer: The Mishnah refers to where a house is underground and its roof is at the same height as the floor of the adjacent courtyard (this is why the Mishnah included it).

Question: The Mishnah also teaches - The windows in the wall and the thickness of the [top of] the wall itself are considered inside - this again implies that anything inside, even the roof, is sanctified?

Answer: This also refers to where a house is underground etc.

This follows the teaching of R. Acha quoting R.Chinana - The Pasuk states (eicha 2, 8), "He made rampart and wall mourn'' - referring to a smaller wall within a larger wall (where the smaller wall was the same height as the high ground around it).

Question: If they sanctified the thickness of the wall, they certainly sanctified the window!

Answer (r. Acha): It was needed for a window above the Agof - even though underneath he Agof of Yerushalayim was not sanctified, the window above it was sanctified.

Beraisa - R. Yehuda: The tunnels under the Heichal are not sanctified; the roofs above it are sanctified.

R. Imi quoting R''SBL: There is also a Mishnah (in Maseches Tamid) that teaches this - (if a Kohen needed to relieve himself in the Temple, he would descend to the tunnels underneath the Heichel.) There was a bonfire there with a lavatory referred to as the "chair of honor''. What was its honor? If the Kohen found the door to be closed, he knew that it was occupied; if he found the door to be open, it was vacant. (if there was a lavatory there, it shows that the tunnels were not sanctified.)

Rejection (r. Yosa): Is excrement Tameh? It is only a matter of cleanliness!

So what in fact is the source that the tunnels are not sanctified? (the earlier part of that Mishnah in Tamid teaches...) "A [Kohen who became a] Baal Keri would exit and follow a circuitous path that ran underneath the Beis HaMikdash that was illuminated with candlelight, until he reached the room in which to immerse.'' If the underground tunnels were sanctified, he should have taken the quickest path rather than a circuitous path?!