Numbers 19:7; Numbers 19:8; Numbers 19:10

7 After that, the priest must wash his clothes and bathe himself with water. He may then come into the camp, but he will be ceremonially unclean till evening.

8 The man who burns it must also wash his clothes and bathe with water, and he too will be unclean till evening.

10 The man who gathers up the ashes of the heifer must also wash his clothes, and he too will be unclean till evening. This will be a lasting ordinance both for the Israelites and for the foreigners residing among them.