The Book of Forgetfulness (In Prayer)
13/96. Chapter:
Another kind
Sunan an-Nasai
أَخْبَرَنَا أَحْمَدُ بْنُ حَفْصِ بْنِ عَبْدِ اللَّهِ النَّيْسَابُورِيُّ، قَالَ حَدَّثَنِي أَبِي قَالَ، حَدَّثَنِي إِبْرَاهِيمُ، - يَعْنِي ابْنَ طَهْمَانَ - عَنِ الْحَجَّاجِ بْنِ الْحَجَّاجِ، عَنْ أَبِي الزُّبَيْرِ، عَنْ أَبِي عَلْقَمَةَ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ سَبَّحَ فِي دُبُرِ صَلاَةِ الْغَدَاةِ مِائَةَ تَسْبِيحَةٍ وَهَلَّلَ مِائَةَ تَهْلِيلَةٍ غُفِرَتْ لَهُ ذُنُوبُهُ وَلَوْ كَانَتْ مِثْلَ زَبَدِ الْبَحْرِ " .
It was narrated that Abu Hurairah said: "The Messenger of Allah (ﷺ) said: 'Whoever says the tasbih one hundred times following the morning prayer, and the tahlil one hundred times, he will be forgiven his sins even if they are like the foam of the sea.'"
Reference : Sunan an-Nasa'i 1354In-book reference : Book 13, Hadith 176English translation : Vol. 2, Book 13, Hadith 1355