Arabic (Original)
حَدَّثَنَا أَسْوَدُ بْنُ عَامِرٍ حَدَّثَنَا إِسْرَائِيلُ عَنْ عَاصِمِ بْنِ سُلَيْمَانَ عَنْ أَبِي عُثْمَانَ عَنْ أَبِي ذَرٍّ عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ مَنْ صَامَ ثَلَاثَةَ أَيَّامٍ مِنْ كُلِّ شَهْرٍ فَقَدْ صَامَ الدَّهْرَ كُلَّهُ.
English Translation
Aswad ibn Amir narrated to us: Isra'il narrated to us, from Asim ibn Sulayman, from Abu Uthman, from Abu Dharr, from the Prophet, peace and blessings be upon him, that he said: "Whoever fasts three days from every month has fasted the whole lifetime."