Leviticus 13:53-55

Modern English Version

⁵³ If the priest examines it, and the disease has not spread in the garment, either in the warp or the woof, or in anything of leather, ⁵⁴ then the priest shall command that they wash the article in which the disease appears, and he shall isolate it for seven days more. ⁵⁵ The priest shall examine the infected article after it has been washed. If the infected spot has not changed its color, even if the disease has not spread, it is unclean. You shall burn it in the fire, whether the leprous spot is on the inside or on the outside of the article.