‘Alqama b. Abu Waqqas said:

I was with <i>Mu'awiyah</i> when his <i>mu’adhdhin</i> called the <i>adhan</i>, and Mu'awiya repeated the <i>mu’adhdhin’s</i> words, but when he said, “Come to prayer, he said, “There is no might and no power except in God,” and when he said, “Come to salvation,” he said, “There is no might and no power except in God the High, the Mighty.” After that he repeated the <i>mu’adhdhin’s</i> words, then said, “I heard God’s Messenger say that.” Ahmad transmitted it.

وَعَنْ عَلْقَمَةَ بْنِ وَقَّاصٍ قَالَ: (إِنِّي لَعِنْدَ مُعَاوِيَةَ إِذْ أَذَّنَ مُؤَذِّنُهُ فَقَالَ مُعَاوِيَةُ كَمَا قَالَ مُؤَذِّنُهُ حَتَّى إِذَا قَالَ: حَيَّ عَلَى الصَّلَاةِ: قَالَ: لَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللَّهِ فَلَمَّا قَالَ: حَيَّ عَلَى الْفَلَاحِ قَالَ: لَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللَّهِ الْعَلِيِّ الْعَظِيمِ وَقَالَ بَعْدَ ذَلِكَ مَا قَالَ الْمُؤَذِّنُ ثُمَّ قَالَ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسلم قَالَ ذَلِك. رَوَاهُ أَحْمد