Leviticus 16:24-28

24And he shall bathe his body in water in a holy place and put on his garments and come out and offer his burnt offering and the burnt offering of the people and make atonement for himself and for the people. 25And the fat of the sin offering he shall burn on the altar. 26And he who lets the goat go to Azazel shall wash his clothes and bathe his body in water, and afterward he may come into the camp. 27And the bull for the sin offering and the goat for the sin offering, whose blood was brought in to make atonement in the Holy Place, shall be carried outside the camp. Their skin and their flesh and their dung shall be burned up with fire. 28And he who burns them shall wash his clothes and bathe his body in water, and afterward he may come into the camp.