Leviticus 16:25

22 and the goat shall bear on him all their iniquities to a solitary land: and he shall let go the goat in the wilderness.

23 Aaron shall come into the tent of meeting, and shall put off the linen garments, which he put on when he went into the holy place, and shall leave them there:

24 and he shall bathe his flesh in water in a holy place, and put on his garments, and come forth, and offer his burnt offering and the burnt offering of the people, and make atonement for himself and for the people.

25 The fat of the sin-offering shall he burn on the altar.

26 He who lets go the goat for Azazel shall wash his clothes, and bathe his flesh in water, and afterward he shall come into the camp.

27 The bull of the sin-offering, and the goat of the sin-offering, whose blood was brought in to make atonement in the holy place, shall be carried forth outside of the camp; and they shall burn in the fire their skins, and their flesh, and their dung.

28 He who burns them shall wash his clothes, and bathe his flesh in water, and afterward he shall come into the camp.