Jami` at-Tirmidhi 3809
جامع الترمذي#3809Da'ifحَدَّثَنَا سُفْيَانُ بْنُ وَكِيعٍ، قَالَ حَدَّثَنَا أَبِي، عَنْ سُفْيَانَ الثَّوْرِيِّ، عَنْ أَبِي إِسْحَاقَ، عَنِ الْحَارِثِ، عَنْ عَلِيٍّ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لَوْ كُنْتُ مُؤَمِّرًا أَحَدًا مِنْ غَيْرِ مَشُورَةٍ لأَمَّرْتُ ابْنَ أُمِّ عَبْدٍ " .
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
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Ahmad Muhammad ShakirDaif
Al-AlbaniDaif
Zubair Ali ZaiDaif
In-book reference: 49:209