Leviticus 16:26-30

²⁶And the man who takes away the goat for Azazel is to have his clothing washed and his body bathed in water and then he may come back to the tent-circle.

²⁷And the ox of the sin-offering and the goat of the sin-offering, whose blood was taken in to make the holy place free from sin, are to be taken away outside the tent-circle and their skins and their flesh and their waste are to be burned with fire.

²⁸And the man by whom they are burned is to have his clothing washed and his body bathed in water, and then he may come back to the tent-circle.

²⁹And let this be an order to you for ever: in the seventh month, on the tenth day, you are to keep yourselves from pleasure and do no sort of work, those who are Israelites by birth and those from other lands who are living among you:

³⁰For on this day your sin will be taken away and you will be clean: you will be made free from all your sins before the Lord.