Five things are obligated in challah: wheat, barley, spelt, oats, and rye. These [species] are obligated in challah, they combine with one another and they are forbidden under [the law of] chadash [to be eaten] before Pesach, and to be harvested before the omer. And if they took root before the omer, the omer renders them permitted; but if not, they are forbidden until the next omer is brought.

[If] one eats a kezayis of matzah [of these species] on Pesach, he has discharged his obligation; [if one eats] a kezayis of chametz [of these species], he is liable to kares. [If] one of these [five species of grain] was mixed with another type [of food], this [person who possesses the mixture] transgresses on Pesach.  [If] one vows [to abstain] from “bread” or from “tevuah,” he is forbidden to [eat bread made from] these [Five Species], [these are] the words of R' Meir. But the Sages say: One who vows [to abstain] from “dagan” is forbidden only to [eat] these [species].  And they are obligated in challah and in tithes.

These [items] are obligated in challah but are exempt from tithes: leket, shich'chah, pe'ah, ownerless [produce], maaser rishon whose terumah was taken, maaser sheni and hekdesh [produce] that were redeemed, the leftover of the omer, and grain which has not attained a third [of its growth]. R' Eliezer says: Grain which has not attained a third [of its growth] is exempt from challah.

These [items] are liable to tithes but are exempt from challah: rice, millet, poppy, sesame, legumes, and less than five reva'im in [the case of] grain.  Sufganin, duvshanin, iskeritin, a pan loaf, and dimua mixtures are exempt from challah.

A dough which is sufganin at its beginning and sufganin at its end is exempt from challah. [If] it was dough at its beginning and sufganin at its end, [or] sufganin at its beginning and dough at its end, it is obligated in challah. And kenuvkaos are likewise obligated [in challah].

[Regarding] a me'issah, Beis Shammai exempt [it from challah], but Beis Hillel obligate [it]. [Regarding] a chalitah, Beis Shammai obligate [it in challah], but Beis Hillel exempt [it].  [Regarding] loaves of the todah [offering], and wafers of the nazir [offering], [if] one made them for himself, [they] are exempt [from challah]. [If one made them] to sell in the marketplace, [they are] obligated [in challah].

[If] a baker made sourdough to divide, it is obligated in challah. [Regarding] women who gave a baker [flour] to make sour-dough for them, if none of their [sourdoughs] is the [minimum] amount, it is exempt from challah.

[Regarding] dough for dogs, if the shepherds eat from it, [it] is obligated in challah, we may make eruvin with it, we may make shitufei [mevo'os] with it, we recite a blessing over it, we participate in a zimun because of it, it may be made on Yom Tov, and a person can fulfill his obligation with it on Pesach.  [But] if the shepherds do not eat from it, it is not obligated in challah, we may not make eruvin with it, we may not make shitufei [mevo'os] with it, we do not recite a blessing over it, we do not participate in a zimun because of it, it may not be made on Yom Tov, and one cannot fulfill his obligation with it on Pesach.  In either case, it contracts tumah of foods.

[Regarding] challah and terumah, one is liable to death for [illegally eating] them and to [a surcharge of] a “fifth,” they are for-bidden to non-Kohanim, they are the property of the Kohen [to whom they are given], they are nullified in [a mixture of] one hundred and one [parts], they require hand-washing and sunset, they may not be taken from [produce which is] tahor on be-half of [produce which is] tamei, [and] only from that which is in [their] proximity and from something “finished.”  One who says, “My entire [crop in the] silo is terumah,” or “My entire dough is challah” has said nothing, unless he leaves over a small amount [as chullin].