[Machine] A man from this tribe killed a man from the tribe Khuzāʿah during the pre-Islamic period. He (the man from Khuzāʿah) remained hidden (in hiding). When the day of victory (conquest) came and the call (to prayer) was made, he (the man from Khuzāʿah) appeared. A man from Khuzāʿah met him and slaughtered him like a sheep. The news of this incident was brought to the Prophet Muhammad ﷺ . He asked, "Did he kill him before the call (to prayer) or after the call (to prayer)?" They replied, "He killed him after the call (to prayer)." The Prophet ﷺ said, "If I were a believer fighting against a disbeliever, I would have killed him with him. But remove his brain." So they removed his brain. This (incident) was the first instance of removing the brain that occurred in Islam.  

قَتَلَ رَجُلٌ مِنْ هُذَيْلٍ رَجُلًا مِنْ خُزَاعَةَ فِي الْجَاهِلِيَّةِ فَكَانَ الهدلي مُتَوَارِيًا فَلَمَّا كَانَ يَوْمُ الْفَتْحِ وَظَهَرَ النِّدَاءُ ظَهْرَ فَلَقِيَهُ رَجُلٌ مِنْ خُزَاعَةَ فَذَبَحَهُ كَمَا تُذْبَحُ الشَّاةُ فَرُفِعَ ذَلِكَ إِلَى النَّبِيِّ ﷺ قَالَ «قَتَلَهُ قَبْلَ النِّدَاءِ أَوْ بَعْدَ النِّدَاءِ؟» قَالُوا قَتَلَهُ بَعْدَ النِّدَاءِ فَقَالَ النَّبِيُّ ﷺ «لَوْ كُنْتُ قَاتِلًا مُؤْمِنًا بِكَافِرٍ لَقَتَلْتُهُ بِهِ وَلَكِنْ أَخْرِجُوا عَقْلِهِ» فَأَخْرَجُوا عَقْلِهِ فَبَدَأَ أَوَّلُ عَقْلٍ كان فِي الْإِسْلَامِ