1SA 14:34

34 After they did that, he said to those men, “Go and tell all the soldiers that each of them must bring an ox or a sheep to me, and kill it here on this stone, [and drain the blood] before he eats any of the meat. They should not sin against Yahweh by eating meat [from some animal] without draining its blood.” So that night all the soldiers brought animals and slaughtered them there. Then Saul built an altar to [worship] Yahweh.