Leviticus 14:51-52

51Then he shall take the cedar wood, the 1hyssop, and the 2scarlet string, with the live bird, and dip them in the blood of the slaughtered bird as well as in the 3running water, and sprinkle the house seven times.

52So he shall cleanse the house with the blood of the bird and with the 4running water, along with the live bird, the cedar wood, the hyssop, and the 5scarlet string.