Leviticus 16:27-28
Context16:27 The bull of the sin offering and the goat of the sin offering, whose blood was brought to make atonement in the holy place, must be brought outside the camp 1 and their hide, their flesh, and their dung must be burned up, 2 16:28 and the one who burns them must wash his clothes and bathe his body in water, and afterward he may reenter the camp.