Leviticus 17:3-6

ISV(i) 3 When a person from the house of Israel slaughters an ox, a lamb, or a goat (whether in the camp or outside the camp), 4 but fails to bring it to the entrance to the Tent of Meeting as an offering in the presence of the tent of the LORD, that person will incur bloodguilt. Because he has shed blood, that person is to be eliminated from contact with his people.”
5 Centralized Sacrificial Slaughter“This statute is required so that the Israelis may bring their sacrifices that they have been sacrificing to the LORD in the open field to the priest at the entrance to the Tent of Meeting, where they are to slaughter their peace offering to the LORD. 6 The priest is to sprinkle the blood on the LORD’s altar at the entrance to the Tent of Meeting and incinerate the fat, making a pleasing aroma to the LORD.