Leviticus 24:20 in the World English Bible
fracture for fracture, eye for eye, tooth for tooth. It shall be done to him as he has injured someone.
Context
19 And if a man cause a blemish in his neighbour; as he hath done, so shall it be done to him;
20 Breach for breach, eye for eye, tooth for tooth: as he hath caused a blemish in a man, so shall it be done to him again.
21 And he that killeth a beast, he shall restore it: and he that killeth a man, he shall be put to death.