And the 64th mitzvah is that we are commanded that the act of bringing a sin-offering, regardless of its type, must be performed in the prescribed manner.1

The source of this commandment is G‑d's statement2 (exalted be He), "This is the law of the sin-offering..." There in Leviticus it is explained how it is slaughtered, which parts of the animal are burned and which are eaten.