Sahih al-Bukhari 7158
Sahih al-Bukhari · Book 93: Judgments (Ahkaam) · Can a judge give a judgement in an angry mood?
Narrated `Abdur Rahman bin Abi Bakra:
حَدَّثَنَا آدَمُ ، حَدَّثَنَا شُعْبَةُ ، حَدَّثَنَا عَبْدُ الْمَلِكِ بْنُ عُمَيْرٍ ، سَمِعْتُ عَبْدَ الرَّحْمَنِ بْنَ أَبِي بَكْرَةَ ، قَالَ كَتَبَ أَبُو بَكْرَةَ إِلَى ابْنِهِ وَكَانَ بِسِجِسْتَانَ بِأَنْ لاَ تَقْضِيَ بَيْنَ اثْنَيْنِ وَأَنْتَ غَضْبَانُ، فَإِنِّي سَمِعْتُ النَّبِيَّ صلى الله عليه وسلم يَقُولُ " لاَ يَقْضِيَنَّ حَكَمٌ بَيْنَ اثْنَيْنِ وَهْوَ غَضْبَانُ " .
Abu Bakra wrote to his son who was in Sijistan: 'Do not judge between two persons when you are angry, for I heard the Prophet (ﷺ) saying, "A judge should not judge between two persons while he is in an angry mood."