Leviticus 1:5
1:5 Then the one presenting the offering must slaughter the bull before the Lord, and the sons of Aaron, the priests, must present the blood and splash the blood against the sides of the altar which is at the entrance of the Meeting Tent.
Leviticus 14:25
14:25 Then he is to slaughter the male lamb of the guilt offering, and the priest is to take some of the blood of the guilt offering and put it on the right earlobe of the one being cleansed, on the thumb of his right hand, and on the big toe of his right foot.
Leviticus 16:15
16:15 “He must then slaughter the sin offering goat which is for the people. He is to bring its blood inside the veil-canopy, and he is to do with its blood just as he did to the blood of the bull: He is to sprinkle it on the atonement plate and in front of the atonement plate.