Numbers 19:10-12

Complete Jewish Bible

¹⁰ The one who collected the ashes of the heifer is to wash his clothes and be unclean until evening. For the people of Isra’el and for the foreigner staying with them this will be a permanent regulation.

¹¹ “Anyone who touches a corpse, no matter whose dead body it is, will be unclean for seven days. ¹² He must purify himself with [these ashes] on the third and seventh days; then he will be clean. But if he does not purify himself the third and seventh days, he will not be clean.