Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
ahmad:20393 – Sufyān > ʿAbd al-Malik b. ʿUmayr > ʿAbd al-Raḥman b. Abū Bakarah from his father

[Machine] From the prophet ﷺ , he said: It is not appropriate for a judge, and Sufyan said once to a ruler, to adjudicate between two while being angry.  

أحمد:٢٠٣٩٣ – حَدَّثَنَا سُفْيَانُ عَنْ عَبْدِ الْمَلِكِ بْنِ عُمَيْرٍ عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي بَكَرَةَ عَنْ أَبِيهِ

عَنِ النَّبِيِّ ﷺ قَالَ لَا يَنْبَغِي لِلْقَاضِي وَقَالَ سُفْيَانُ مَرَّةً لِلْحَاكِمِ أَنْ يَحْكُمَ بَيْنَ اثْنَيْنِ وَهُوَ غَضْبَانُ  

See similar narrations below:

Collected by Ibn Mājah, Aḥmad
ibnmajah:2316 – Hishām b. ʿAmmār And Muḥammad b. ʿAbdullāh b. Yazīd And Aḥmad b. Thābit al-Jaḥdarī > Sufyān b. ʿUyaynah > ʿAbd al-Malik b. ʿUmayr > ʿAbd al-Raḥman b. Abū Bakrah from his father

“Let the judge (Qadi) not pass a judgment when he is angry.”  

ابن ماجة:٢٣١٦ – حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ وَمُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ يَزِيدَ وَأَحْمَدُ بْنُ ثَابِتٍ الْجَحْدَرِيُّ قَالُوا حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ عَنْ عَبْدِ الْمَلِكِ بْنِ عُمَيْرٍ أَنَّهُ سَمِعَ عَبْدَ الرَّحْمَنِ بْنَ أَبِي بَكْرَةَ عَنْ أَبِيهِ

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ يَقْضِي الْقَاضِي بَيْنَ اثْنَيْنِ وَهُوَ غَضْبَانُ قَالَ هِشَامٌ لاَ يَنْبَغِي لِلْحَاكِمِ أَنْ يَقْضِيَ بَيْنَ اثْنَيْنِ وَهُوَ غَضْبَانُ  

ahmad:20379 – Wakīʿ > Sufyān And ʿAbd al-Raḥman > Sufyān > ʿAbd al-Malik b. ʿUmayr > ʿAbd al-Raḥman b. Abū Bakarah from his father > Katab

The Messenger of Allah ﷺ said: A judge should not decide between the two while he is in anger. (Using translation from Abū Dāʾūd 3589)   

أحمد:٢٠٣٧٩ – حَدَّثَنَا وَكِيعٌ حَدَّثَنَا سُفْيَانُ وَعَبْدُ الرَّحْمَنِ عَنْ سُفْيَانَ عَنْ عَبْدِ الْمَلِكِ بْنِ عُمَيْرٍ عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي بَكَرَةَ عَنْ أَبِيهِ أَنَّهُ كَتَبَ

أَنَّ رَسُولَ اللهِ ﷺ قَالَ لَا يَقْضِي الْحَاكِمُ بَيْنَ اثْنَيْنِ وَهُوَ غَضْبَانُ