Levítico 13:3

3 O sacerdote lhe examinará a praga na pele; se o pelo na praga se tornou branco, e a praga parecer mais profunda do que a pele da sua carne, é praga de lepra; o sacerdote o examinará e o declarará imundo.

3 and the priest shall look on the plague in the skin of the flesh: and if the hair in the plague be turned white, and the appearance of the plague be deeper than the skin of his flesh, it is the plague of leprosy; and the priest shall look on him, and pronounce him unclean.