Leviticus 7:1-5

‘This is the law of the guilt offering; it is most holy. In the place where they kill the burnt offering they are to kill the guilt offering, and he shall sprinkle its blood around on the altar. Then he shall offer all its fat, the fat tail and the fat that covers the entrails, and the two kidneys with the fat that is on them at the loins, and the lobe of the liver, which he shall remove with the kidneys. The priest shall offer them up in smoke on the altar as an offering by fire to the LORD; it is a guilt offering.