The Mishnah had taught: "Michui (wiping) of its innards (overrides Shabbos)''. R' Yochanan said - the pasuk states (Mishlei 16, 4), "Everything Hash-m made, He made for His sake'' - that it should not appear as if he is removing the organs from a sacrifice that is repulsive.

(Beraisa) - R' Yishmael: Skinning it (in its entirety) overrides Shabbos.

(Beraisa) - R' Yishmael son of R'YBB: On Shabbos they would skin its chest area (beginning from its hind legs, in order to be able to remove its organs, as burning the fats overrides Shabbos).

Reasoning of R' Yishmael: In order that it should not appear as if he is removing the organs from a sacrifice that is repulsive.

Question: What is the reasoning of R' Yishmael son of R'YBB?

Answer: Since he begins it skinning from its legs, it does not appear as if he is removing the organs from a sacrifice that is repulsive.

R' Yochanan: R' Yishmael and R' Yishmael son of R'YBB said the same thing - just as R' Yishmael said that performing the Divine service in a better way overrides Shabbos, but performing it in the most superior way does not; so too R' Yishmael son of R'YBB said that performing the Divine service in a better way overrides Shabbos, but performing it in the most superior way does not.

Question: If so, why must he skin it in order to burn the limbs - let him just tear it open and remove them?!

Objection (R' Yosi bei R' Bun): The reasoning of R' Yishmael son of R'YBB is not as stated by R' Yochanan; rather, he follows the opinion of R' Shimon, as the Beraisa (in Shabbos) states -

One who files, drills or cuts away any minimal amount on Shabbos is liable.

R' Shimon (ben Elazar) says - One is only liable when he files as much as is needed; he drills as much as is needed; he cuts away as much as is needed; he tans a skin as much as is needed

Support (R' Yaakov bar Acha): He follows the opinion of R' Shimon, who does not view part of a Melachah like a full Melachah; however, the Rabbanan do view part of it like a full Melachah.

Question: According to Rabban Shimon ben Gamliel (who said that even one who bangs with his hammer on the anvil whilst working is liable. Surely he has not achieved anything at all!) If a person took hold of a stalk to cut it and he did not do so, has he done anything?

Answer (Rav): Rabban Shimon ben Gamliel follows the opinion of R' Yehudah who taught in a Beraisa -

One who is Shovet (evens the warp threads) and Mekatket (hits the woof so it will not be too taut) is liable as it levels the materials in preparation for the next time; this is also true when hitting the anvil.

The Mishnah had taught: Burning of the fats (overrides Shabbos).

Source: The pasuk states (Shemos 23, 18), "The fat of My Chagiga shall not remain until the morning''.

Question: May the limbs of a sacrifice brought on a weekday be burned on Yom Tov? (Why then is a pasuk required to teach that the limbs of the Pesach may not be burned on the night of the 15th?)

Answer (R' Abahu): It is needed when the 14th occurs on Shabbos (that one might have thought that the fats of Shabbos should be burned on Yom Tov).

Question (R' Yona): If the pasuk refers to when the 14th occurs on Shabbos, why does it then specify that the fats should not remain until the morning - on Shabbos, there is no Chagiga brought?!

Conclusion of question: Rather, the pasuk is teaching that it should be sacrificed whilst still day, in order to prevent it remaining until the morning. If so, what is the source to say that it overrides Shabbos - perhaps it is a weekday?!

Answer (R' Chinana): It can refer to the 14th occurring on Shabbos - if a person transgressed and brought the Chagiga on Shabbos, it would be valid; therefore the Torah states the prohibition of allowing the limbs to remain.

The Mishnah had taught: Its roasting and rinsing its innards do not override Shabbos.

Question: An earlier Mishnah taught that at nightfall, they would go out and roast their Pesach offerings. (This would not however take place on Shabbos as its roasting does not override Shabbos.) How then could we state in the Mishnah (in Maseches Shabbos) that they could lower the Korban into the oven just before Shabbos - does this not imply that roasting is permitted on Shabbos?

Answer: They permitted lowering it into the oven before Shabbos but not actually to roast it on Shabbos. (Note: The Korban HaEidah also suggests an alternative text and explains that the Gemara questions the permissibility of leaving the Pesach to roast on Shabbos - surely one might come to stoke the coals on Shabbos? The Gemara answers from R' Yosi that the members of the group are zealous and they would not come to stoke.)

The Mishnah had taught: Carrying it and bringing it from outside the Techum (is prohibited on Shabbos).

The prohibition only applied when transferring it out of Yerushalayim, but to take it out of the Temple courtyard into Yerushalayim was permitted, as that only involved a Rabbinic prohibition (as Yerushalayim is a Karmelis) which does not apply in cases related to the Beis HaMikdash.