Numbers 6:8 WEB

⁶  'All the days that he separates himself to Yahweh he shall not go near a dead body.

⁷  He shall not make himself unclean for his father, or for his mother, for his brother, or for his sister, when they die; because his separation to God is on his head.

⁸  All the days of his separation he is holy to Yahweh.

⁹  'If any man dies very suddenly beside him, and he defiles the head of his separation; then he shall shave his head in the day of his cleansing. On the seventh day he shall shave it.

¹⁰  On the eighth day he shall bring two turtledoves or two young pigeons to the priest, to the door of the Tent of Meeting.