Leviticus 14:26

24The priest shall take the lamb of the trespass offering, and the log of oil, and the priest shall wave them for a wave offering before the LORD.

25He shall kill the lamb of the trespass offering. 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, and on the thumb of his right hand, and on the big toe of his right foot.

26The priest shall pour some of the oil into the palm of his own left hand;

27and the priest shall sprinkle with his right finger some of the oil that is in his left hand seven times before the LORD.

28Then 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, and on the thumb of his right hand, and on the big toe of his right foot, on the place of the blood of the trespass offering.