The Book of the Adhan (The Call to Prayer)
7/35. Chapter:
Repeating The Testimony Of The Mu'adhdhin
Sunan an-Nasai
أَخْبَرَنَا 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.'"
Reference : Sunan an-Nasa'i 676In-book reference : Book 7, Hadith 51English translation : Vol. 1, Book 7, Hadith 677