He who eats of its carcass is to wash his clothes, and be unclean until the evening. Also, the one who carries its carcass is to wash his clothes, and be unclean until the evening.
“The one who gathers the heifer’s ashes is also to wash his clothes as well as be unclean until evening. It will be a permanent statute for Bnei-Yisrael and for the outsider living among them.
“Afterward, the kohen is to wash his clothes and bathe his flesh with the water, and afterward he may come back into the camp. Still the kohen will be unclean until evening.
This is what you must do to them to make them clean: Sprinkle the purifying water on them, then have them shave their whole bodies and wash their clothes, thus purifying themselves.