Leviticus 13:34-37

NSB(i) 34 »The priest will again examine the sore on the seventh day. If it has not spread and does not seem to be deeper than the surrounding skin, he will declare you ritually clean. You will wash your clothes. You will be clean. 35 »If the sore spreads after you have been pronounced clean, 36 the priest will examine you again. If the sore has spread, he need not look for yellowish hairs. You are obviously unclean. 37 »If in the priest's opinion the sore has not spread and healthy hairs are growing in it, the sore has healed. The priest will pronounce you ritually clean.