Arabic (Original)
حَدَّثَنَا إِسْمَاعِيلُ عَنْ يُونُسَ عَنِ الْحَسَنِ أَنَّ أَخًا لِأَبِي مُوسَى كَانَ يَتَسَرَّعُ فِي الْفِتْنَةِ فَجَعَلَ يَنْهَاهُ وَلَا يَنْتَهِي فَقَالَ إِنْ كُنْتُ أَرَى أَنَّهُ سَيَكْفِيكَ مِنِّي الْيَسِيرُ أَوْ قَالَ مِنْ الْمَوْعِظَةِ دُونَ مَا أَرَى وَإِنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ إِذَا تَوَاجَهَ الْمُسْلِمَانِ بِسَيْفَيْهِمَا فَقَتَلَ أَحَدُهُمَا الْآخَرَ فَالْقَاتِلُ وَالْمَقْتُولُ فِي النَّارِ قَالُوا يَا رَسُولَ اللَّهِ هَذَا الْقَاتِلُ فَمَا بَالُ الْمَقْتُولِ قَالَ إِنَّهُ أَرَادَ قَتْلَ صَاحِبِهِ.
English Translation
Isma'il told us, from Yunus, from al-Hasan, that a brother of Abu Musa used to rush recklessly into strife, and he kept forbidding him but he would not stop. So he said: "I used to think that a little would suffice you from me," or he said "of admonition, short of what I intend. And the Messenger of Allah, peace and blessings be upon him, said: 'When two Muslims face each other with their swords and one of them kills the other, both the killer and the killed are in the Fire.' They said, 'O Messenger of Allah, this is the killer, but what about the one killed?' He said, 'He intended to kill his companion.'"