"My father wrote to 'Ubaidullah bin Abi Bakrah who was a judge: "Do not pass a judgement between two people while you are angry, for indeed I heard the Messenger of Allah (ﷺ) saying: 'The judge should not judge between two people while he is angry.'"
Jami` at-Tirmidhi Book 15, Hadith 14
← Previous Hadith (Another chain) from Abu Maryam the Companion of the Prophet (ﷺ), from the Prophet (ﷺ).

Jami` at-Tirmidhi Book 15, Hadith 13 Next Hadith → "The Messenger of Allah (ﷺ) dispatched me to Yemen. When I had left, he sent a message after me, so I returned and he said: 'Do you know why I sent a message to you ? Do not take anything without my permission, for that will be Ghulul, and whoever commits Ghulul, he comes with what he took on the Day of Judgement. This is why I called you, so now go and do your job.'"

Jami` at-Tirmidhi Book 15, Hadith 15