Leviticus 13:20

13:20 and the priest shall examine it; and, behold, if the appearance of it is lower than the skin, and the hair of it has turned white, then the priest shall pronounce him unclean. It is the plague of leprosy. It has broken out in the boil.
-World English Bible

Other Translation

13:20 And if, when the priest seeth it, behold, it [be] in sight lower than the skin, and the hair thereof be turned white; the priest shall pronounce him unclean: it [is] a plague of leprosy broken out of the boil.
-King James Version