Leviticus 14:46

⁴⁴  Then the priest shall come and look, and, behold, if the plague be spread in the house, it is a fretting leprosy in the house; it is unclean.

⁴⁵  And he shall break down the house, the stones of it, and the timber thereof, and all the mortar of the house; and he shall carry them forth out of the city into an unclean place.

⁴⁶  Moreover he that goeth into the house all the while that it is shut up shall be unclean until the even.

⁴⁷  And he that lieth in the house shall wash his clothes; and he that eateth in the house shall wash his clothes.

⁴⁸  And if the priest shall come in, and look upon it, and, behold, the plague hath not spread in the house, after the house was plastered: then the priest shall pronounce the house clean, because the plague is healed.