"The Messenger of Allah said: 'If a person's relative is killed, he has the choice of two things: Either he may retaliate, or he may take the ransom."' (Using translation from Nasāʾī 4785)
قَالَ رَسُولُ اللهِ ﷺ «مَنْ قُتِلَ لَهُ قَتِيلٌ فَهُوَ بِخَيْرِ النَّظَرَيْنِ إِمَّا أَنْ يُقَادَ وَإِمَّا أَنْ يُفْدَى»