Leviticus 16:26-28

“The man who takes the goat out to Azazel in the wilderness then will wash his clothes and bathe himself with water. After that he will be permitted to come back into the camp. The bull for the Absolution-Offering and the goat for the Absolution-Offering, whose blood has been taken into the Holy of Holies to make atonement, are to be taken outside the camp and burned—their hides, their meat, and their entrails. The man assigned to burn them up will then wash his clothes and bathe himself in water. Then he is free to come back into the camp.