Leviticus 13:8

and the priest shall look upon him; and, behold, [if] the mark have spread in the skin, then the priest shall pronounce him unclean: it is a leprosy.

And if the priest see that, behold, the scab spreadeth in the skin, then the priest shall pronounce him unclean: it is a leprosy.

The priest shall examine him; and behold, if the scab has spread on the skin, then the priest shall pronounce him unclean. It is leprosy.