Mga Sanggunian sa Mishnah para sa Levitico 6:2: Mishnah Berakhot, Mishnah Zevachim, Mishnah Megillah & Mishnah Yoma

From what time may one recite the Shema in the evening? From the time that the priests enter [their houses] in order to eat their terumah until the end of the first watch, the words of Rabbi Eliezer. The sages say: until midnight. Rabban Gamaliel says: until dawn. Once it happened that his sons came home [late] from a wedding feast and they said to him: we have not yet recited the [evening] Shema. He said to them: if it is not yet dawn you are still obligated to recite. And not in respect to this alone did they so decide, but wherever the sages say “until midnight,” the mitzvah may be performed until dawn. The burning of the fat and the pieces may be performed till dawn. Similarly, all [the offerings] that are to be eaten within one day may be eaten till dawn. Why then did the sages say “until midnight”? In order to keep a man far from transgression.

One who slaughters a sacrifice [intending]: To sprinkle its blood outside [the Temple] or part of its blood outside; To burn its innards or part of its innards outside; To eat its flesh or as much as an olive of its flesh outside, Or to eat as much as an olive of the skin of the fat-tail outside, It is invalid, but it does not involve karet. [One he slaughters a sacrifice intending]: To sprinkle its blood or part of its blood the next day, To burn its innards or part of its innards on the next day; To eat its flesh or as much as an olive of its flesh on the next day; Or to eat as much as an olive of the skin of its fat-tail on the next day, It is piggul, and involves kareth.

The whole night is valid for reaping the Omer and for burning fat and limbs [on the altar]. This is the general principle: any matter whose commandment is during the day, is valid all day and any matter whose commandment is at night is valid all night.