Sunan an-Nasa'i
Sunan an-Nasa'i 2409
أَخْبَرَنَا عَلِيُّ بْنُ الْحَسَنِ اللاَّنِيُّ، بِالْكُوفَةِ عَنْ عَبْدِ الرَّحِيمِ، - وَهُوَ ابْنُ سُلَيْمَانَ - عَنْ عَاصِمٍ الأَحْوَلِ، عَنْ أَبِي عُثْمَانَ، عَنْ أَبِي ذَرٍّ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ صَامَ ثَلاَثَةَ أَيَّامٍ مِنَ الشَّهْرِ فَقَدْ صَامَ الدَّهْرَ كُلَّهُ " . ثُمَّ قَالَ " صَدَقَ اللَّهُ فِي كِتَابِهِ { مَنْ جَاءَ بِالْحَسَنَةِ فَلَهُ عَشْرُ أَمْثَالِهَا } " .
Ali ibn al-Hasan al-Lani reported in Kufah from Abd al-Rahim—he is Ibn Sulayman—from Asim al-Ahwal, from Abu Uthman, from Abu Dharr, who said: The Messenger of Allah ﷺ said: Whoever fasts three days of each month has fasted for an entire lifetime. Then he said: Allah has spoken the truth in His Book: Whoever brings a good deed will have ten times its like.