Leviticus 24:19-21

Suppose someone hurts their neighbor. Then what they have done must be done to them. A bone must be broken for a bone. An eye must be put out for an eye. A tooth must be knocked out for a tooth. The one who has hurt his neighbor must be hurt in the same way. Whoever kills an animal must pay its owner. But if they kill a human being, they must be put to death.