(1) Anyone who intentionally eats an olive's size [כזית, or more] of chametz on Pesach from the beginning of the night of the fifteenth [of Nisan] until the conclusion of the day of the twenty-first [of Nisan] is liable for כרת, as [Exodus 12:15] states: "Whoever eats leaven... will have his soul cut off."
[Should one eat this amount of chametz] unintentionally, one is liable to bring a fixed sin offering [as atonement].
[The above applies] equally to one who eats chametz and one who converts it into a liquid and drinks it.
(2) On Pesach, it is forbidden to derive any benefit from chametz, as [Exodus 13:3] states: "Do not eat (לא יאכל) chametz"; i.e., it is not permitted [to be used to derive benefit that leads to] eating.
A person who leaves chametz within his property on Pesach, even though he does not eat it, transgresses two prohibitions: [Exodus 13:7] states: "No leavening agent may be seen in all your territory" and [Exodus 12:19] states: "No leavening agent may be found in your homes."
[Though the prohibitions stated in these verses apply to שאור,] it is the same prohibition which forbids both חמץ (leaven) and שאור (a leavening agent).
(3) [A violator] is not lashed for [transgressing the prohibitions] not to have [chametz] seen [in his possession] and not to have [chametz] found [in his possession] unless he purchased chametz on Pesach or [caused flour] to become leavened, and thus committed a deed.
However, if he possessed chametz before Pesach, and when Pesach came he did not destroy it and left it in his possession, even though he transgresses two prohibitions, according to the Torah, he is not lashed, for he did not perform a deed. [Nevertheless,] he is given "stripes for being rebellious."
(4) It is prohibited to ever benefit from chametz [that a Jew] possessed during Pesach. This prohibition is a penalty instituted by the Sages. Since the person transgressed [the prohibitions against chametz] being found and being seen [in his possession], they prohibited its use.
[The above applies] even if he inadvertently left [the chametz in his possession during Pesach] or was forced to do so. [These stringencies were instituted] lest a person leave chametz in his possession during Pesach in order to benefit from it after Pesach.
(5) If, on Pesach, even the slightest amount of chametz becomes mixed together with another substance, either of its kind or not of its kind, [the entire mixture] is forbidden.
Though it is forbidden to benefit from chametz which a Jew possessed on Pesach, if it became mixed with another substance, whether of its kind or not of its kind, it is permitted to be eaten after Pesach. [The Sages] only penalized and forbade [the use of] chametz itself. A mixture [containing chametz possessed on Pesach] is permitted to be eaten after Pesach.
(6) One is liable for כרת only for eating chametz itself. However, a person who eats a mixture containing chametz—for example, Babylonian kotach, Median beer, or similar mixtures which contain chametz--[is punished by] lashes and is not liable for כרת [for this involves the transgression of a different commandment], as [Exodus 12:20] states: "Do not eat any leaven."
When does the above apply? When the person consumed an olive size of chametz [while eating] from the mixture within the time it takes to eat three eggs or less. Then, he is obligated for lashes by the Torah. However, if he does not consume an olive size of chametz from the mixture in less time than it takes to eat three eggs, even though such eating is forbidden, he is not [punished by] lashing. Rather, he is given "stripes for being rebellious."
(7) Eating even the slightest amount of chametz itself on Pesach is forbidden by the Torah as [Exodus 13:3] states: "Do not eat [leaven]." Nevertheless, [a person who eats chametz] is not liable for כרת, nor must he bring a sacrifice for anything less than the specified measure, which is the size of an olive.
A person who intentionally violates the prohibition and eats less than an olive size of chametz is given "stripes for being rebellious."
(8) It is forbidden to eat chametz on the day of the fourteenth [of Nisan] from noon onward—i.e., from the beginning of the seventh hour of the day. Any person who eats chametz during this time is punished by lashes according to Torah law, as [Deuteronomy 16:3] states: "Do not eat any leaven with it "; i.e., together with the Paschal sacrifice.
Based on the oral tradition, we received the interpretation of that statement as: Do not eat any chametz during the time which is fit to slaughter the Paschal sacrifice, that being the afternoon—i.e., after midday.
(9) The Sages forbade the eating of chametz from the beginning of the sixth hour in order to prevent infringement upon a Torah commandment. Thus, from the beginning of the sixth hour, it is forbidden to eat or benefit from chametz, based on Rabbinic law. During the rest of the day, from the seventh hour on, eating chametz is forbidden because of the Torah law.
During the fifth hour of the day, we do not eat chametz, lest the day be cloudy and we err between the fifth and six hours. However, there is no prohibition against benefiting from chametz during the fifth hour.
Therefore, Terumah and the breads of the thanksgiving offering which are chametz are left in a tentative status because of their holiness. They are neither eaten nor burned until the beginning of the sixth hour. Then, the entire quantity [of chametz] is burned.
(10) Thus, you have learned that it is permitted to eat chametz on the day of the fourteenth [of Nisan] until the end of the fourth hour. During the fifth hour, [chametz] is not eaten, but benefit may be derived from it. A person who eats chametz during the sixth hour is [punished by] "stripes for being rebellious." One who eats during the seventh hour is lashed.