Leviticus 14:46-50

Moreover, whoever goes into the house during the time that he has quarantined it, becomes unclean until evening.

Likewise, whoever lies down in the house shall wash his clothes, and whoever eats in the house shall wash his clothes.

“If, on the other hand, the priest comes in and makes an inspection and the spot has not indeed spread in the house after the house has been replastered, then the priest shall pronounce the house clean because the spot has not reappeared.

To cleanse the house then, he shall take two birds, cedar wood, a scarlet string, and hyssop,

and he shall slaughter the one bird in an earthenware vessel over running water.