Leviticus 16:27-28

Darby(i) 27 And the bullock of the sin-offering, and the goat of the sin-offering whose blood was brought in to make atonement in the sanctuary, shall one carry forth outside the camp; and they shall burn with fire their skins, and their flesh, and their dung. 28 And he that burneth them shall wash his clothes, and bathe his flesh in water; and afterwards he may come into the camp.