Leviticus 8:24-25

²⁴And Aaron's sons were brought, and Moses put of the blood upon the tip of their right ear, and upon the thumb of their right hand, and upon the great toe of their right foot; and Moses dashed the blood against the altar round about.

²⁵And he took the fat, and the fat tail, and all the fat that was upon the inwards, and the lobe of the liver, and the two kidneys, and their fat, and the right thigh.