يَقُولُ مِثْلَ مَا يَقُولُ المُؤَذِّنُ إلَّا فِي «حَيَّ عَلَى الصَّلاةِ» وَ «حَيَّ عَلَى الفَلاحِ» فَيَقُولُ: «لَا حَولَ وَ لَا قُوَّةَ إلَّا بِاللهِ».

One repeats just as the muadhdhin (one who calls to prayers) says, except when he says “come to prayer” or “come to success,” one should say “There is no might nor power except with Allāh.”

Reference: Al-Bukhārī (#611, 1/152) and Muslim (#383, 1/288).