عَنْ عَبْدِ الرَّحْمَنِ بْنِ عَوْفٍ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ:" ثَلَاثَةٌ تَحْتَ الْعَرْشِ يَوْمَ الْقِيَامَةِ الْقُرْآنُ يُحَاجُّ الْعِبَادَ لَهُ ظَهْرٌ وَبَطْنٌ وَالْأَمَانَةُ وَالرَّحِمُ تُنَادِي: أَلَا مَنْ وَصَلَنِي وَصَلَهُ اللَّهُ وَمَنْ قَطَعَنِي قَطَعَهُ اللَّهُ ". رَوَاهُ فِي شرح السّنة

Anas reported the Prophet as saying, 'If anyone recites two hundred times daily, ‘Say, He is God, One’, the sins of fifty years will be wiped out, unless he is in debt.” Tirmidhī and Dārimī transmitted it. The latter’s version has “fifty times”, and he did not mention “unless he is in debt.”