636
Musnad AhmedIt was narrated that ‘Ali (رضي الله عنه) said:
The Messenger of Allah (ﷺ) sent me to Yemen when I was young, I said: You are sending me to people among whom things happen and I do not know how to judge. He said: "Allah will guide your tongue and make your heart steadfast." And I never doubted any judgement I passed between two people after that.
Reference: Musnad Ahmad 636
Arabic/English book : Book 5, Hadith 636
Arabic/English book : Book 5, Hadith 636