Sa'd b. Abi Waqqas reported the Messenger of Allah (ﷺ) as saying :
If anyone says when he hears the MU'ADHDHIN : "And I testify that there is no god but Allah alone who has no partner and that Muhammad is His servant and Apostle: I am satisfied with Allah as lord, with Muhammad as apostle and with Islam as religion" , he will be forgiven.
Reference: Sunan Abi Dawud 525 In-book : Book 2, Hadith 135 English translation : Book 2, Hadith 525
Help us gift a modern, ad-free Islamic application for the Muslim Ummah. Your donation will be recorded as Sadaqah Jariyah in your book of deeds, In Sha Allah.