The Prophet ﷺ said: If a relative of anyone is killed, or if he suffers khabl, which means a wound, he may choose one of the three things: he may retaliate, or forgive, or receive compensation. But if he wishes a fourth (i.e. something more), hold his hands. After this whoever exceeds the limits shall be in grave penalty.
أَنَّ النَّبِيَّ ﷺ قَالَ مَنْ أُصِيبَ بِقَتْلٍ أَوْ خَبْلٍ فَإِنَّهُ يَخْتَارُ إِحْدَى ثَلاَثٍ إِمَّا أَنْ يَقْتَصَّ وَإِمَّا أَنْ يَعْفُوَ وَإِمَّا أَنْ يَأْخُذَ الدِّيَةَ فَإِنْ أَرَادَ الرَّابِعَةَ فَخُذُوا عَلَى يَدَيْهِ وَمَنِ اعْتَدَى بَعْدَ ذَلِكَ فَلَهُ عَذَابٌ أَلِيمٌ