Sunan an-Nasa'i 676
سنن النسائي#676Sahihأَخْبَرَنَا مُحَمَّدُ بْنُ قُدَامَةَ، حَدَّثَنَا جَرِيرٌ، عَنْ مِسْعَرٍ، عَنْ مُجَمِّعٍ، عَنْ أَبِي أُمَامَةَ بْنِ سَهْلٍ، قَالَ سَمِعْتُ مُعَاوِيَةَ، - رضى الله عنه - يَقُولُ سَمِعْتُ مِنْ، رَسُولِ اللَّهِ صلى الله عليه وسلم وَسَمِعَ الْمُؤَذِّنَ فَقَالَ مِثْلَ مَا قَالَ .
It was narrated that Abu Umamah bin Sahl said:"I heard Mu'awiyah say: 'I heard the Messenger of Allah (S.A.W), when he heard the Mu'adhdhin, repeating what he said
Scholarly Authentication
The label above is the grade most of these scholars gave, each scholar counted once — 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. When they judged only its chain of narrators (“Isnaad”), the label says “Sound chain”. Each scholar's own wording:
In-book reference: 7:51