Leviticus 8:15-16

8:15 and he slaughtered it. Moses then took the blood and put it all around on the horns of the altar with his finger and decontaminated the altar, and he poured out the rest of the blood at the base of the altar and so consecrated it to make atonement on it. 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,