Exodus 29:20-21

20Slaughter the ram, take some of its blood, and put it on the right earlobes of Aaron and his sons, on the thumbs of their right hands, and on the big toes of their right feet. Splatter the remaining blood on all sides of the altar. 21And take some of the blood on the altar and some of the anointing oil and sprinkle it on Aaron and his garments, as well as on his sons and their garments. Then he and his garments will be consecrated, as well as his sons and their garments.