6:18 “‘Then the Nazirite must shave his consecrated head at the entrance to the tent of meeting and must take the hair from his consecrated head and put it on the fire where the peace offering is burning.
Numbers 8:7
8:7 And do this to them to purify them: Sprinkle water of purification on them; then have them shave all their body and wash their clothes, and so purify themselves.