Narrated 'Ali:
that the Messenger of Allah (ﷺ) said: "If I was going to appoint anyone as a leader without any consultation, I would appoint Ibn Umm 'Abd." (JA)
English reference (JA): Vol. 1, Book 46, Hadith 3809 (JA)
Arabic reference (JA): Book 49, Hadith 4179 (JA)