Surah 2

Surah 2:178

"You who believe! The (law of) retaliation is prescribed for you in (the case of) those who have been killed: the free man for the free man, the slave for the slave, and the female for the female. But whoever is granted any pardon for it by his brother, it should be (done) rightfully, and payment should be rendered with kindness. That is a concession from your Lord, and a mercy. Whoever transgresses after that – for him (there is) a painful punishment."