It was narrated from Jarir bin 'Abdullah that the Prophet said: "Fasting three days of each month is fasting for a lifetime, and the shining days of Al-Bid, the thirteenth, fourteenth and fifteenth."

It was narrated from Jarir bin 'Abdullah that the Prophet said: "Fasting three days of each month is fasting for a lifetime, and the shining days of Al-Bid, the thirteenth, fourteenth and fifteenth."

أَخْبَرَنَا مَخْلَدُ بْنُ الْحَسَنِ، قَالَ حَدَّثَنَا عُبَيْدُ اللَّهِ، عَنْ زَيْدِ بْنِ أَبِي أُنَيْسَةَ، عَنْ أَبِي إِسْحَاقَ، عَنْ جَرِيرِ بْنِ عَبْدِ اللَّهِ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏ "‏ صِيَامُ ثَلاَثَةِ أَيَّامٍ مِنْ كُلِّ شَهْرٍ صِيَامُ الدَّهْرِ وَأَيَّامُ الْبِيضِ صَبِيحَةَ ثَلاَثَ عَشْرَةَ وَأَرْبَعَ عَشْرَةَ وَخَمْسَ عَشْرَةَ ‏"‏ ‏.‏