Jami` at-Tirmidhi 3843
جامع الترمذي#3843Sahihحَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى، قَالَ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ النُّفَيْلِيُّ، قَالَ حَدَّثَنَا عَمْرُو بْنُ وَاقِدٍ، عَنْ يُونُسَ بْنِ حَلْبَسٍ، عَنْ أَبِي إِدْرِيسَ الْخَوْلاَنِيِّ، قَالَ لَمَّا عَزَلَ عُمَرُ بْنُ الْخَطَّابِ عُمَيْرَ بْنَ سَعِيدٍ عَنْ حِمْصَ، وَلَّى مُعَاوِيَةَ فَقَالَ النَّاسُ عَزَلَ عُمَيْرًا وَوَلَّى مُعَاوِيَةَ . فَقَالَ عُمَيْرٌ لاَ تَذْكُرُوا مُعَاوِيَةَ إِلاَّ بِخَيْرٍ فَإِنِّي سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " اللَّهُمَّ اهْدِ بِهِ " . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ غَرِيبٌ , وَعَمْرُو بْنُ وَاقِدٍ يُضَعَّفُ .
Narrated Abu Idris Al-Khawlani:"When 'Umar bin Al-Khattab removed 'Umair bin Sa'd as governor of Hims, he appointed Mu'awiyah. The people said: 'He has removed 'Umair and appointed Mu'awiyah.' So 'Umair said: 'Do not mention Mu'awiyah except with good, for indeed, I heard the Messenger of Allah (ﷺ) saying: "O Allah guide (others) by him
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:
In-book reference: 49:243