Leviticus 14:46-48

Revised Standard Version

⁴⁶ Moreover he who enters the house while it is shut up shall be unclean until the evening; ⁴⁷ and he who lies down in the house shall wash his clothes; and he who eats in the house shall wash his clothes.

⁴⁸ “But if the priest comes and makes an examination, and the disease has not spread in the house after the house was plastered, then the priest shall pronounce the house clean, for the disease is healed.