Leviticus 14:6-7

14:6 Then he is to take the live bird along with the piece of cedar wood, the scrap of crimson fabric, and the twigs of hyssop, and he is to dip them and the live bird in the blood of the bird slaughtered over the fresh water, 14:7 and sprinkle it seven times on the one being cleansed from the disease, pronounce him clean, and send the live bird away over the open countryside.