Leviticus 8:16

8:16 Then he took all the fat on the entrails, the protruding lobe of the liver, and the two kidneys and their fat, and Moses offered it all up in smoke on the altar,

Leviticus 9:10

9:10 The fat and the kidneys and the protruding lobe of the liver from the sin offering he offered up in smoke on the altar just as the Lord had commanded Moses,