Les Nombres 19:9 Références de la Michna : Mishnah Temurah, Mishnah Parah, Mishnah Chagigah & Mishnah Kiddushin

Hatat water does not become hatat water except with the putting of ashes [in the water]. A doubtful graveyard cannot make another doubtful graveyard. Nor can terumah be made after terumah. A substitute cannot make another substitute. The offspring of a dedicated animal cannot make a substitute. Rabbi Judah says: the offspring of a dedicated animal can make a substitute. They said to him: a dedicated animal can make a substitute, but neither the offspring of a dedicated animal nor a substitute can make a substitute.

One that is born from the side, the hire of a harlot or the price of a dog is invalid. Rabbi Eliezer says that it is valid, as it says, "You shall not bring the hire of a harlot or the price of a dog into the house of the Lord your God," (Deuteronomy 23:19) and this was not brought into the house. All blemishes that cause consecrated animals to be invalid cause also the [red] cow to be invalid. If one had ridden on it, leaned on it, hung on its tail, crossed a river by its help, doubled up its leading rope, or put one's cloak on it, it is invalid. But if one had only tied it up by its leading rope or made for it a sandal to prevent it from slipping or spread one's cloak on it because of flies, it is valid. This is the general rule: wherever anything is done for its own sake, it remains valid; but if for the sake of another, it becomes invalid.

They wash hands for [eating] unconsecrated [food], and [second] tithe, and for terumah [heave-offering]. But for sacred food they must immerse [their hands in a mikveh]. With regard to the [water of] purification, if one’s hands became impure, one’s [whole] body is impure.