Leviticus 13:54-56

The Voice

⁵⁴ the priest must direct the article be washed, and then quarantined for another seven days. ⁵⁵ After it has been washed, the priest must check it again; and if the affected area looks the same, then the article is still unclean even though the outbreak has not spread. Therefore, you must burn it in the fire; it doesn’t matter whether the affected area is on the front or the back.

⁵⁶ But if the priest examines it, and the affected area has faded after it has been washed, the priest must rip the affected material out of the garment, leather, or woven or knitted material.