Leviticus 13:54-56

New American Standard Bible

⁵⁴ then the priest shall order them to wash the thing in which the mark occurs, and he shall ^[a]quarantine it for seven more days. ⁵⁵ After the article with the mark has been washed, the priest shall again look, and if the mark has not changed its appearance, even if the mark has not spread, it is unclean; you shall burn it in the fire, whether an eating away has produced bareness on the back or on the front of it.

⁵⁶ “But if the priest looks, and indeed the mark has faded after it has been washed, then he shall tear it out of the garment or out of the leather, whether from the ^[b]warp or from the woof;