Leviticus 16:25

23 Then Aaron is to enter the Tent of Meeting, take off the linen garments he put on before entering the Most Holy Place, and leave them there.

24 He is to bathe himself with water in a holy place and put on his own clothes. Then he must go out and sacrifice his burnt offering and the people’s burnt offering to make atonement for himself and for the people.

25 He is also to burn the fat of the sin offering on the altar.

26 The man who released the goat as the scapegoat must wash his clothes and bathe himself with water; afterward he may reenter the camp.

27 The bull for the sin offering and the goat for the sin offering, whose blood was brought into the Most Holy Place to make atonement, must be taken outside the camp; and their hides, flesh, and dung must be burned up.