[Machine] Abu Musa al-Ash'ari had a brother called Abu Ruham, who used to rush into conflict. Al-Ash'ari disliked engaging in conflict, so he said to him, "If it weren't for me hearing from the Messenger of Allah ﷺ , I would not have informed you of what I am about to tell you. I heard the Messenger of Allah ﷺ say, 'No two Muslims meet with their swords without one of them killing the other, except that they both enter the Hellfire together.'"  

أَنَّ أَبَا مُوسَى الْأَشْعَرِيَّ كَانَ لَهُ أَخٌ يُقَالُ لَهُ أَبُو رُهْمٍ وَكَانَ يَتَسَرَّعُ فِي الْفِتْنَةِ وَكَانَ الْأَشْعَرِيُّ يَكْرَهُ الْفِتْنَةَ فَقَالَ لَهُ لَوْلَا مَا أَبْلَغْتَ إِلَيَّ مَا حَدَّثْتُكَ إِنِّي سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ مَا مِنْ مُسْلِمَيْنِ الْتَقَيَا بِسَيْفَيْهِمَا فَقَتَلَ أَحَدُهُمَا الْآخَرَ إِلَّا دَخَلَا جَمِيعًا النَّارَ