Let no one judge between two people while being angry.

‘Abdur-Rahmān ibn Abu Bakrah reported: My father wrote, or I wrote on his behalf, to his son ‘Ubaydullāh ibn Abu Bakrah, a judge in Sijistan, saying: "Do not judge between two people while being in a state of anger, for indeed I heard the Messenger of Allah (may Allah's peace and blessings be upon him) say: 'Let no one judge between two people while being angry.'" Another narration reads: "Let no judge pass judgment between two people while being angry.”