Ibn Umar reported: The Prophet, peace and blessings be upon him, said, “The Muslims is the brother of another Muslim. He does not wrong him, nor forsake him. By the One in whose hand is the soul of Muhammad, no two people who love each other for Allah and then separate but that it was due to a sin committed by one of them.”
Source: Musnad Aḥmad 5357
Grade: Sahih (authentic) according to Al-Arna’ut
عَنِ ابْنِ عُمَرَ أَنَّ النَّبِيَّ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ قَالَ الْمُسْلِمُ أَخُو الْمُسْلِمِ لَا يَظْلِمُهُ وَلَا يَخْذُلُ وَالَّذِي نَفْسُ مُحَمَّدٍ بِيَدِهِ مَا تَوَادَّ اثْنَانِ فَفُرِّقَ بَيْنَهُمَا إِلَّا بِذَنْبٍ يُحْدِثُهُ أَحَدُهُمَا
5357 مسند أحمد بن حنبل
9/260 المحدث شعيب الأرناؤوط خلاصة حكم المحدث صحيح في تخريج المسند لشعيب
