ALLAH swt' has clearly said in Quran:
“And there is (a saving of) life for you in Al-Qisaas (the Law of Equality in punishment), O men of understanding, that you may become Al-Muttaqoon (the pious)” [al-Baqarah 2:179]
We ordained therein for them:"Life for life, eye for eye, nose or nose, ear for ear, tooth for tooth, and wounds equal for equal." But if any one remits the retaliation by way of charity, it is an act of atonement for himself. And if any fail to judge by (the light of) what Allah hath revealed, they are (No better than) wrong-doers" [al-Ma'idah 5:45 ]