71 Pesachim 6/4-6 & 7/1

(4) The chagigah may come from the flock [of sheep], from the cattle, from the lambs, or from the goats; from the males or from the females; and it may be eaten [through the duration of] two days and one night.

(5) If one slaughtered a Pesach sacrifice [on the eve of Pesach] without specific intention for it, on Shabbat; he is obligated [to sacrifice] a chatat [an offering brought to expiate sin]. If he slaughtered any other sacrifices with the intention that they be a Pesach sacrifice; if the [animals] are not fit [for the requirements of a Pesach sacrifice], he is obligated; but if they are fit, Rabbi Eliezer obligates [him], but Rabbi Yehoshua exempts [him]. Said Rabbi Eliezer, "If concerning the Pesach sacrifice which, with specific intention for it, is permitted [to slaughter on Shabbat], one who has changed the name [intention of what sacrifice it should be], is deemed to be obligated; does it not follow logically that when he had changed the names of other sacrifices, which are prohibited [to be slaughtered on Shabbat even] with specific intention for them, that he would, a fortiori, be guilty?" Rabbi Yehoshua said [back] to him, "No, can you [apply what is affirmed in respect to] the Pesach sacrifice, when its name was changed to that which is forbidden [on Shabbat], to other sacrifices where the name has been changed to what is permitted?" Rabbi Eliezer said [back] to him, "The public [offerings] will determine [this case,] for they are permitted on Shabbat with specific intention for them; and [yet] if one slaughters [other offerings] with the specific intention for it [to be such a sacrifice], he is guilty." Rabbi Yehoshua said [back] to him, "No, can you [apply what is affirmed in respect to] the public [offerings], which have a determinate number, to the Pesach sacrifice which has no determinate number?" Rabbi Meir said, "Also he who slaughters [other offerings on Shabbat] with the intention that they be public [offerings] is exempt."

(6) If one slaughtered the Pesach sacrifice [on Shabbat] for those who are not [considered to be able to be] its eaters, or for those who are not designated for it, for those uncircumcised or for those impure, he is obligated [to sacrifice a chattat]; but if it had been slaughtered for those who are [considered to be able to be] its eaters and for those who are not [considered to be able to be] its eaters; or for those that are designated for it and for those that are not designated for it; or for those circumcised and for those uncircumcised; or for those impure and those pure, he is exempt. If one slaughtered it, and it was found to have a blemish, he is obligated; if, one slaughtered it, and it was found to be a ‏terefah‎ [an animal with a mortal condition such that it would die within one year] [due to a condition that is] in a hidden [location of the body], he is exempt. If one slaughters it and it [then] becomes known that the owners had withdrawn [themselves] from it, or died, or become impure, he is exempt, because he slaughtered it, when it had [still] been permitted.

(1) How must we roast the Pesach sacrifice ? We bring a spit [made of the wood] of a pomegranate-tree and jab it in at its mouth [of the lamb or kid] until [it comes out again at] the place of its [lower] opening; and one places its legs and its entrails inside of it - so says Rabbi Yose Haglili. Rabbi Akiva says, "This would be a kind of boiling; rather we suspend them outside [of the lamb]."