Numbers 6:18-19

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.

19And the priest must take the boiled shoulder of the ram, one cake made without yeast from the basket, and one wafer made without yeast, and put them on the hands of the Nazirite after he has shaved his consecrated head;