Leviticus 14:24-26

²⁴And the priest shall take the lamb offered for trespass, and the pint of oil, and he shall raise or rear them up together;

²⁵and when the lamb is offered, he shall put of the blood thereof on the last part of the right ear of him that is cleansed, and on the thumbs of his right hand and foot.

²⁶Soothly the priest put the part of oil into his own left hand,