Leviticus 1:9-11

9 but its innards and its legs he shall wash with water. The priest shall burn the whole on the altar, for a burnt offering, an offering made by fire, of a pleasant aroma to the Lord.

10 "'If his offering is from the flock, from the sheep, or from the goats, for a burnt offering, he shall offer a male without blemish.

11 He shall kill it on the north side of the altar before the Lord. Aaron's sons, the priests, shall sprinkle its blood around on the altar.