حَدَّثَنَا مُحَمَّدُ بْنُ حَاتِمٍ الْمُكْتِبُ، حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ الأَنْصَارِيُّ، حَدَّثَنَا حُمَيْدٌ الطَّوِيلُ، عَنْ أَنَسٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " انْصُرْ أَخَاكَ ظَالِمًا أَوْ مَظْلُومًا " . قُلْنَا يَا رَسُولَ اللَّهِ نَصَرْتُهُ مَظْلُومًا فَكَيْفَ أَنْصُرُهُ ظَالِمًا قَالَ " تَكُفُّهُ عَنِ الظُّلْمِ فَذَاكَ نَصْرُكَ إِيَّاهُ " . قَالَ وَفِي الْبَابِ عَنْ عَائِشَةَ . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ .
It was narrated from Anas bin Malik, that the Prophet(s.a.w) said: "Help your brother whether he is an oppressor or oppressed." It was said: "O Messenger of Allah! I help him when he is oppressed. But how can I help him when he oppresses?" He said: "Prevent him from oppression, that is your help for him." Translation Not Available
Book Ref: Jamiya Tirmidhi Book 33 Hadith 2255
Web Ref: Jamiya Tirmidhi Vol 4 Book 7 Hadith 2255