Leviticus 13:29-31

New King James Version

²⁹ “If a man or woman has a sore on the head or the beard, ³⁰ then the priest shall examine the sore; and indeed if it appears deeper than the skin, and there is in it thin yellow hair, then the priest shall pronounce him unclean. It is a scaly leprosy of the head or beard. ³¹ But if the priest examines the scaly sore, and indeed it does not appear deeper than the skin, and there is no black hair in it, then the priest shall isolate the one who has the scale seven days.