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 saying, "A judge should not judge between two persons while he is in an angry mood."
— Sahih Bukhari, Volume 9, Book 89: Judgments (Ahkaam), Hadith #272
