Leviticus 14:46-48

Amplified Bible

⁴⁶ Moreover, whoever goes into the house during the time that it is quarantined becomes unclean until evening. ⁴⁷ And whoever lies down in the house [to rest] shall wash his clothes, and whoever eats in the house shall wash his clothes.

⁴⁸ “But if the priest comes in and inspects it and the mark has not spread in the house after the house has been replastered, he shall pronounce the house clean because the mark has not reappeared.