"Whoever says, when he hears the Mu'adhdhin: 'Ashhadu an la ilaha illallah wahdahu la sharika lahu wa anna Muhammadan 'abduhu wa Rasuluhu, raditu Billahi Rabban, wa bil-Islami dinan was bi Muhammadin Rasula (I bear witness that there is none worthy of worship except Allah alone, with no partner or associate, and that Muhammad is the His slave and Messenger; I am content with Allah as my Lord, Islam as my religion and Muhammad as my Messenger),' his sins will be forgiven."  

عَنْ رَسُولِ اللَّهِ ﷺ قَالَ مَنْ قَالَ حِينَ يَسْمَعُ الْمُؤَذِّنَ وَأَنَا أَشْهَدُ أَنْ لاَ إِلَهَ إِلاَّ اللَّهُ وَحْدَهُ لاَ شَرِيكَ لَهُ وَأَنَّ مُحَمَّدًا عَبْدُهُ وَرَسُولُهُ رَضِيتُ بِاللَّهِ رَبًّا وَبِمُحَمَّدٍ رَسُولاً وَبِالإِسْلاَمِ دِينًا غُفِرَ لَهُ ذَنْبُهُ  

"The Messenger of Allah ﷺ said: 'Whoever says, when he hears the call to prayer: "Allahumma rabba hadhihid-da'wat it-tammah was-salat il-qaimah, ati Muahmmadan al-wasilah wal-fadilah, wab'athu maqaman mahmudan alladhi wa'adtahu (O Allah, Lord of this perfect call and the prayer to be offered, grant Muhammad the privilege (of interceding) and also the eminence, and resurrect him to the praised position that you have promised),' will be granted my intercession on the Day of Resurrection."  

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ قَالَ حِينَ يَسْمَعُ النِّدَاءَ اللَّهُمَّ رَبَّ هَذِهِ الدَّعْوَةِ التَّامَّةِ وَالصَّلاَةِ الْقَائِمَةِ آتِ مُحَمَّدًا الْوَسِيلَةَ وَالْفَضِيلَةَ وَابْعَثْهُ الْمَقَامَ الْمَحْمُودَ الَّذِي وَعَدْتَهُ إِلاَّ حَلَّتْ لَهُ شَفَاعَتِي يَوْمَ الْقِيَامَةِ