And it is subject to gleanings, the Forgotten Sheaf and Peah. Poor Israelites and poor priests may glean them, but the poor Israelites must sell theirs to priests for the price of Terumah and the money becomes theirs. R. Tarfon [T3] says: only poor priests may glean them, lest [the others] forget and put it into their mouths. Whereupon R. Akiba [T3] said to him: if that be so, then only those who are clean should be allowed to glean.
(Purchase a printed Mishnah)