Leviticus 17:2-6

17:2 “Speak to Aaron, his sons, and all the Israelites, and tell them: ‘This is the word that the Lord has commanded: 17:3 “Blood guilt will be accounted to any man from the house of Israel who slaughters an ox or a lamb or a goat inside the camp or outside the camp, 17:4 but has not brought it to the entrance of the Meeting Tent to present it as an offering to the Lord before the tabernacle of the Lord. He has shed blood, so that man will be cut off from the midst of his people. 17:5 This is so that the Israelites will bring their sacrifices that they are sacrificing in the open field to the Lord at the entrance of the Meeting Tent to the priest and sacrifice them there as peace offering sacrifices to the Lord. 17:6 The priest is to splash the blood on the altar of the Lord at the entrance of the Meeting Tent, and offer the fat up in smoke for a soothing aroma to the Lord.