Leviticus 14:46-48

The Voice

⁴⁶ Whoever enters the house while the house is quarantined by the priest will become unclean until dusk. ⁴⁷ Also anyone who sleeps or eats inside the house must wash their clothes.

⁴⁸ If the priest enters the house to inspect it and the spot has not reappeared after the walls have been rebuilt and replastered, the priest will declare the house clean because the spot has not returned.