‘Abdallah b. ‘Amr told of a man who said, “Messenger of God, the mu'adhdhins excel us.”* To him God’s Messenger replied, ‘Say the same words as they say, and when you come to the end, if you make any petition it will be granted to you.”
* This most probably means that they get a greater reward. The reply suggests how that may be counterbalanced.
Abu Umama, or one of the companions of God’s Messenger, said that Bilal began the iqama, and when he said, “The time for prayer has come,” God’s Messenger said, “May God establish it and cause it to continue!” During the whole of the iqama he made such responses as are found in ‘Umar’s tradition about the adhan.