(4) باب مَا يُقَالُ إِذَا أَذَّنَ الْمُؤَذِّنُ
It was narrated that Abu Hurairah said:
"The Messenger of Allah said: 'When the Mu'adh-dhin calls the Adhan, say as he says.'" (ES)
Reference (ES): Sunan Ibn Majah 718 (ES)
In-book reference (ES): Book 3, Hadith 13 (ES)
English translation (ES): Vol. 1, Book 3, Hadith 718 (ES)