Leviticus 5:9

and he shall sprinkle some of the blood of the sin offering on the side of the altar , while the rest of the blood shall be drained out at the base of the altar ; it is a sin offering .

and is to splash some of the blood of the sin offering against the side of the altar; the rest of the blood must be drained out at the base of the altar. It is a sin offering.

And he shall sprinkle of the blood of the sin offering upon the side of the altar; and the rest of the blood shall be wrung out at the bottom of the altar : it is a sin offering.