عَنْ سَعْدِ بْنِ أَبِي وَقَّاصٍ رضي الله عنه عَنْ رَسُولِ اللهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ أَنَّهُ قَالَ: «مَنْ قَالَ حِينَ يَسْمَعُ الْمُؤَذِّنَ أَشْهَدُ أَنْ لَا إِلَهَ إِلَّا اللهُ وَحْدَهُ لَا شَرِيكَ لَهُ، وَأَنَّ مُحَمَّدًا عَبْدُهُ وَرَسُولُهُ، رَضِيتُ بِاللهِ رَبًّا وَبِمُحَمَّدٍ رَسُولًا، وَبِالْإِسْلَامِ دِينًا، غُفِرَ لَهُ ذَنْبُهُ».
Kutoka kwa Sa'd Bin Abi Waqaas Allah amridhie kutoka kwa Mtume rehema na amani ziwe juu yake amesema: "Atakayesema wakati anamsikia muadhini: Ninashuhudia kuwa hapana Mola apasaye kuabudiwa kwa haki isipokuwa Mwenyezi Mungu yeye pekee asiye na mshirika nakuwa Muhammadi ni mja wake na ni Mtume wake, nimeridhia kuwa Mwenyezi Mungu ni Mola wangu na Muhammadi kuwa ni Mtume na Uislamu kuwa ni dini, atasamehewa dhambi zake".
Sa‘d ibn Abi Waqqās (may Allah be pleased with him) reported that the Messenger of Allah (may Allah's peace and blessings be upon him) said: "Whoever says upon hearing the muezzin: 'Ash-hadu alla ilāha illallāh wahdahu la sharīka lah wa anna Muhammadan ‘abduhu wa rasūluh, radītu billāhi rabban, wa bi Muhammadin rasūlan wa bil Islāmi dīna (I bear witness that there is no god but Allah alone without any partner and that Muhammad is His slave and messenger. I am pleased with Allah as a Lord, with Muhammad as a messenger, and with Islam as a religion), his sins will be forgiven)."
Kuirudia rudia dua hii wakati wa kusikia adhana ni miongoni mwa mambo yanayofuta madhambi.