"The Messenger of Allah said: 'When the Mu'adh-dhin calls the Adhan, say as he says.'"
Sunan Ibn Majah Book 3, Hadith 13
← Previous Hadith "I was with the Messenger of Allah on a journey, and he commanded me to call the Adhan. Bilal wanted to call the Iqamah, but the Messenger of Allah said: 'The brother of Suda' called the Adhan, and the one who calls the Adhan is the one who calls the Iqamah.'"

Sunan Ibn Majah Book 3, Hadith 12 Next Hadith → When the Messenger of Allah was with her on her day and night, and heard the Mu'adh-dhin calling the Adhan, she heard him saying what he said.

Sunan Ibn Majah Book 3, Hadith 14