Mishnah Pesachim 1

¹On the evening of the fourteenth [of Nissan] they search they house for chametz by the light of a lamp. Every place into which chametz is not brought does not require searching, So why did they rule: two rows of the wine cellar [must be searched]? [This is actually] a place into which chametz might be taken. Bet Shammai say: two rows over the front of the whole cellar; But Bet Hillel say: the two outer rows, which are the uppermost. ²They need not fear that a weasel may have dragged [chametz] from one room to another or from one place to another, for if so, [they must also fear] from courtyard to courtyard and from town to town, and there would be no end to the matter. ³Rabbi Judah says: they search on the evening of the fourteenth and in the morning of the fourteenth, and at the time of destroying. But the sages say: if he did not search in the evening of the fourteenth he must search on the fourteenth; if he did not search in [the morning of] the fourteenth, he must search during the festival; if he did not search during the festival, he must search after the festival. And what he leaves over he must put away in a hidden place, so that he should not need searching after it. ⁴Rabbi Meir says: one may eat [chametz] the whole of the five [hours] and must burn [it] at the beginning of the sixth. Rabbi Judah says: one may eat the whole of the four [hours], suspend it the whole of the fifth, and must burn it at the beginning of the sixth. ⁵Rabbi Judah further said: two unfit loaves of thanksgiving used to lie on the roof of the [Temple] portico: as long as they lay [there] all the people would eat [chametz]. When one was removed, they would keep it in suspense, neither eating nor burning [it]. When both were removed, all the people began to burn [their chametz]. Rabban Gamaliel says: non-sacred chametz may be eaten the whole of the four [hours] and terumah the whole of the five [hours] and they burn [them] at the beginning of the sixth [hour]. ⁶Rabbi Hanina the vice-chief of the priests says: during all of the days of the priests they never refrained from burning [sacrificial] meat which had been defiled by an offspring of uncleanness with meat which had been defiled by a father of uncleanness, even though they add uncleanness to its uncleanness. Rabbi Akiva added and said: during [all] the days of the priests they did not refrain from lighting oil which had been rendered unclean by a tevul yom in a lamp which had been made unclean by one who had contracted corpse impurity, even though they add uncleanness to its uncleanness. ⁷Rabbi Meir said: from their words we learn that we may burn clean terumah together with unclean terumah on Pesah. Rabbi Yose said: that is not a [proper] analogy. And Rabbi Eliezer and Rabbi Joshua agree that each is burnt separately. Concerning what do they disagree? In respect of doubtful [terumah] and unclean [terumah]: Rabbi Eliezer says: each is burnt separately But Rabbi Joshua rules: both together.