Arabic (Original)
حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ حَدَّثَنَا شُعْبَةُ عَن عَبْدِ الْمَلِكِ بْنِ عُمَيْرٍ عَن عَبْدِ الرَّحْمَنِ بْنِ أَبِي بَكْرَةَ قَالَ كَتَبَ أَبُو بَكْرَةَ إِلَى ابْنِهِ وَهُوَ عَامِلٌ بِسِجِسْتَانَ أَنْ لَا تَقْضِيَ بَيْنَ رَجُلَيْنِ وَأَنْتَ غَضْبَانُ فَإِنِّي سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ لَا يَقْضِ حَكَمٌ بَيْنَ اثْنَيْنِ أَوْ خَصْمَيْنِ وَهُوَ غَضْبَانُ.
English Translation
Muhammad ibn Ja'far told us, Shu'bah told us, from Abd al-Malik ibn Umayr, from Abd al-Rahman ibn Abi Bakrah, who said: Abu Bakrah wrote to his son, who was a governor in Sijistan: "Do not judge between two men while you are angry, for I heard the Messenger of Allah, peace and blessings be upon him, say: 'A judge should not judge between two people' - or 'two disputants' - 'while he is angry.'"