"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»  

[Machine] The Messenger of Allah ﷺ said: "Whoever is killed and has a slain person (in revenge) is of the best of the two outcomes: either to be executed or to receive compensation." Ahmad bin Ibrahim bin Muhammad informed us, saying: Ibn 'Aidh informed us, saying: Yahya, the son of Hamza, informed us, saying: Al-Awza'i informed us, saying: Yahya bin Abi Kathir informed me that Abu Salama reported that the Messenger of Allah ﷺ said: "Whoever is killed and has a slain person (in revenge) is (to be) executed." [Hadith transmitted by multiple chains of narrators]  

قَالَ رَسُولُ اللهِ ﷺ «مَنْ قُتِلَ لَهُ قَتِيلٌ فَهُوَ بِخَيْرِ النَّظَرَيْنِ إِمَّا أَنْ يُقَادَ وَإِمَّا أَنْ يُفَادَى» 6963 أَخْبَرَنَا أَحْمَدُ بْنُ إِبْرَاهِيمَ بْنِ مُحَمَّدٍ قَالَ حَدَّثَنَا ابْنُ عَائِذٍ قَالَ حَدَّثَنَا يَحْيَى هُوَ ابْنُ حَمْزَةَ قَالَ حَدَّثَنَا الْأَوْزَاعِيُّ قَالَ حَدَّثَنَا يَحْيَى بْنُ أَبِي كَثِيرٍ قَالَ حَدَّثَنِي أَبُو سَلَمَةَ أَنَّ رَسُولَ اللهِ ﷺ قَالَ «مَنْ قُتِلَ لَهُ قَتِيلٌ » مُرْسَلٌ