Exodus 29:19-20

19“You are to take the second ram, and Aaron and his sons are to lay their hands on the ram’s head,

20and you are to kill the ram and take some of its blood and put it on the tip of the right ear of Aaron, on the tip of the right ear of his sons, on the thumb of their right hand, and on the big toe of their right foot, and then splash the blood all around on the altar.