Sahih
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا أَبُو أُسَامَةَ، عَنْ شُعْبَةَ، عَنْ قَتَادَةَ، عَنْ عَبَّاسٍ الْجُشَمِيِّ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ ـ صلى الله عليه وسلم ـ قَالَ " إِنَّ سُورَةً فِي الْقُرْآنِ ثَلاَثُونَ آيَةً شَفَعَتْ لِصَاحِبِهَا حَتَّى غُفِرَ لَهُ {تَبَارَكَ الَّذِي بِيَدِهِ الْمُلْكُ} " .
It was narrated from Abu Hurairah that the Prophet (ﷺ) said:"There is a surah in the Qur'an, with thirty verses, which will intercede for its companion (the one who recites it) until he is forgiven: Tabarakal-ladhi bi yadihil mulk (Blessed is He in Whose Hand is the Dominion)