Numbers 19:6-8

New Century Version

⁶ Then the priest must take a cedar stick, a hyssop branch, and a red string and throw them onto the burning cow. ⁷ After the priest has washed himself and his clothes with water, he may come back into the camp, but he will be unclean until evening. ⁸ The man who burns the cow must wash himself and his clothes in water; he will be unclean until evening.