Leviticus 14:47

And he who lies down in the house shall wash his clothes, and he who eats in the house shall wash his clothes.

Surrounding context

14:46 Moreover he who goes into the house at all while it is shut up shall be unclean until evening.

14:47 And he who lies down in the house shall wash his clothes, and he who eats in the house shall wash his clothes.

14:48 "But if the priest comes in and examines it, and indeed the plague has not spread in the house after the house was plastered, then the priest shall pronounce the house clean, because the plague is healed.

Translation and sources