Leviticus 14:51

49To cleanse the house he shall take two birds, cedar wood, scarlet, and hyssop.

50He shall kill one of the birds in an earthen vessel over running water.

51He shall take the cedar wood, the hyssop, the scarlet, and the living bird, and dip them in the blood of the slain bird, and in the running water, and sprinkle the house seven times.

52He shall cleanse the house with the blood of the bird, and with the running water, with the living bird, with the cedar wood, with the hyssop, and with the scarlet;

53but he shall let the living bird go out of the city into the open field. So shall he make atonement for the house; and it shall be clean.”