Numbers 19:7-9

Complete Jewish Bible

⁷ Then the cohen is to wash his clothes and himself in water, after which he may re-enter the camp; but the cohen will remain unclean until evening. ⁸ The person who burned up the heifer is to wash his clothes and himself in water, but he will remain unclean until evening. ⁹ A man who is clean is to collect the ashes of the heifer and store them outside the camp in a clean place. They are to be kept for the community of the people of Isra’el to prepare water for purification from sin.