(13) باب هَلْ يَقْضِي الْحَاكِمُ أَوْ يُفْتِي وَهْوَ غَضْبَانُ
Narrated `Abdur Rahman bin Abi Bakra:
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."
Reference: Sahih al-Bukhari 7158
In-book reference: Book 93, Hadith 22
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 9, Book 89, Hadith 272