AHMAD 23866:
from Abū Rāfiʿ —
[Machine] Narrated by the Prophet Muhammad ﷺ , he said, "When the Mu'adhdhin calls for prayer, he should say what he says until he reaches the part where he says 'Hayya 'ala as-Salah' (Come to prayer). At this point, he should say, 'La hawla wa la quwwata illa billah' (There is no power or strength except with Allah)."
أحمد ٢٣٨٦٦:
عن ابو رافع —
عَنِ النَّبِيِّ ﷺ قَالَ كَانَ إِذَا سَمِعَ الْمُؤَذِّنَ قَالَ مِثْلَ مَا يَقُولُ حَتَّى إِذَا بَلَغَ حَيَّ عَلَى الصَّلَاةِ حَيَّ عَلَى الْفَلَاحِقَالَ لَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللهِ
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