Leviticus 14:40-42

40the priest must order that the stones from those areas be removed. The contaminated material will then be taken outside the town to an area designated as ceremonially unclean.

41Next the inside walls of the entire house must be scraped thoroughly and the scrapings dumped in the unclean place outside the town.

42Other stones will be brought in to replace the ones that were removed, and the walls will be replastered.