Sunan Abi Dawud
Book 25: The Office of the Judge (Kitab Al-Aqdiyah)
كتاب الأقضية
70 hadith in this book
Chapter 9 A judge passing judgement while he is angry
باب الْقَاضِي يَقْضِي وَهُوَ غَضْبَانُ
'Abd al-Rahman bin Abi Bakrah reported on the authority of his father that he wrote to his son: The Messenger of Allah (ﷺ) said: A judge should not decide between the two while he is in anger.
حَدَّثَنَا مُحَمَّدُ بْنُ كَثِيرٍ، أَخْبَرَنَا سُفْيَانُ، عَنْ عَبْدِ الْمَلِكِ بْنِ عُمَيْرٍ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ أَبِي بَكْرَةَ، عَنْ أَبِيهِ، أَنَّهُ كَتَبَ إِلَى ابْنِهِ قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ يَقْضِي الْحَكَمُ بَيْنَ اثْنَيْنِ وَهُوَ غَضْبَانُ " .
Hadith text, translations and grading are courtesy of Sunnah.com.