Leviticus 13:7, 27
Leviticus 13:7 NKJV
But if the scab should at all spread over the skin, after he has been seen by the priest for his cleansing, he shall be seen by the priest again.
Leviticus 13:27 NKJV
And the priest shall examine him on the seventh day. If it has at all spread over the skin, then the priest shall pronounce him unclean. It is a leprous sore.