[Machine] The Prophet ﷺ used to say when he heard the muadhin, he would say as he says. When he said "Hayya 'ala as-salah" he would say "La hawla wa la quwwata illa billah".
كَانَ النَّبِيُّ ﷺ إِذَا سَمِعَ الْمُؤَذِّنَ قَالَ كَمَا يَقُولُ فَإِذَا قَالَ حَيَّ عَلَى الصَّلَاةِ حَيَّ عَلَى الْفَلَاحِ قَالَ «لَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللهِ»