Leviticus 14:44-45

MLV(i) 44 then the priest will come in and look. And behold, if the disease has spread in the house, it is a prickling leprosy in the house; it is unclean. 45 And he will break down the house, the stones of it and the timber of it and all the mortar of the house and he will carry them forth out of the city into an unclean place.