Leviticus 4:11; Leviticus 4:12; Leviticus 4:21

11 But the skin of the bull and all its flesh, with its head, its legs, its entrails, and its dung--

12 all the rest of the bull--he shall carry outside the camp to a clean place, to the ash heap, and shall burn it up on a fire of wood. On the ash heap it shall be burned up.

21 And he shall carry the bull outside the camp and burn it up as he burned the first bull; it is the sin offering for the assembly.