After a priest has become ceremonially clean, they must count off a period of seven days for him.

If, however, the scall spreads further on the skin after his purification,

“This is the law of the diseased person on the day of his purification, when he is brought to the priest.

“‘If anyone dies very suddenly beside him and he defiles his consecrated head, then he must shave his head on the day of his purification – on the seventh day he must shave it.