An-Nasr bin Sufyan narrated that he heard Abu Hurairah say:"We were with the Messenger of Allah (S.A.W) and Bilal stood up and gave the call. When he fell silent the Messenger of Allah (ﷺ) said: 'Whoever says the same as this (what the Mu'adhdhin) with certainty, he will enter Paradise

English translation · Sunan an-Nasa'i