Leviticus 14:25-28

Then he shall kill the lamb of the trespass offering, and the priest shall take some of the blood of the trespass offering and put it on the tip of the right ear of him who is to be cleansed, on the thumb of his right hand, and on the big toe of his right foot. And the priest shall pour some of the oil into the palm of his own left hand. Then the priest shall sprinkle with his right finger some of the oil that is in his left hand seven times before the LORD. And the priest shall put some of the oil that is in his hand on the tip of the right ear of him who is to be cleansed, on the thumb of the right hand, and on the big toe of his right foot, on the place of the blood of the trespass offering.