Leviticus 3:13-15

¹³and lay his hand upon its head, and slay it before the tabernacle of ordinance; and the sons of Aharon shall sprinkle its blood upon the altar round about.

¹⁴And of his oblation he shall offer as an oblation before the Lord the fat which covereth the inwards, and all the fat which is upon the inwards,

¹⁵And the two kidneys, and the fat which is upon them on the sides; but the caul that is over the liver with the kidneys he shall take away.