Arabic (Original)
أَخْبَرَنَا أَبُو خَلِيفَةَ قَالَ حَدَّثَنَا مُسَدَّدُ بْنُ مُسَرْهَدٍ عَنْ يَحْيَى عَنْ شُعْبَةَ عَنْ قَتَادَةَ عَنْ زُرَارَةَ بْنِ أَوْفَى عَنْ عِمْرَانَ بْنِ حُصَيْنٍ أَنَّ رَجُلًا قَاتَلَ رَجُلًا فَعَضَّ يَدَهُ فَنَدَرَتْ ثَنِيَّتُهُ فَقَالَ النَّبِيُّ ﷺ «يَعَضُّ أَحَدُكُمْ كَمَا يَعَضُّ الْفَحْلُ؟ » وَأَبْطَلَهَا
English Translation
Abu Khalifah informed us, saying: Abu al-Walid narrated to us, saying: Shu'bah narrated to us from Qatadah from Anas that the Prophet (peace and blessings be upon him) said: 'Help your brother whether he is an oppressor or oppressed.' It was said: 'O Messenger of Allah, we help him if he is oppressed, but how do we help him if he is an oppressor?' He said: 'You prevent him from oppression, that is helping him.'