Hadith 153

Narrated Abu Sa'id al-Khudri (RA): Allah's Messenger (ﷺ) said: "When you hear the Adhan repeat what the Mu'adhdhin (the call-maker) says." [Agreed upon]. And al-Bukhari has reported similarly in a narration by Mu'awiyah (RA). And Muslim reported a narration by 'Umar (RA) regarding the virtue of repeating what the Mu'adhdhin pronounces word by word except when the Mu'adhdhin says: "Haiya 'alas-Salah, Haiya 'alal-Falah (Come to the prayer and come to the success)", one should say: "La hawla wa la quwwata illa billah [there is no might and no power except with (the help of) Allah]."