Leviticus 14:49-52

ISV(i) 49 In order to cleanse the house, he is to take two birds, some cedar wood, two crimson threads, and some hyssop. 50 Then he is to slaughter one bird on an earthen vessel over flowing water. 51 He is to take the cedar wood, the hyssop, the two crimson threads, and the live bird, and dip them in the blood of the slaughtered bird over flowing water. Then he is to sprinkle the house seven times. 52 He is to clean the house with the blood of the bird over flowing water, including cleansing the live bird, the cedar wood, the hyssop, and the crimson thread.