أَخْبَرَنَا مُحَمَّدُ بْنُ عَبْدِ الأَعْلَى، قَالَ حَدَّثَنَا الْمُعْتَمِرُ، عَنْ أَبِيهِ، قَالَ حَدَّثَنَا أَبُو الْعَلاَءِ، عَنْ مُطَرِّفٍ، عَنِ ابْنِ أَبِي رَبِيعَةَ، عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو، قَالَ ذَكَرْتُ لِلنَّبِيِّ صلى الله عليه وسلم الصَّوْمَ فَقَالَ " صُمْ مِنْ كُلِّ عَشْرَةِ أَيَّامٍ يَوْمًا وَلَكَ أَجْرُ تِلْكَ التِّسْعَةِ " . فَقُلْتُ إِنِّي أَقْوَى مِنْ ذَلِكَ . قَالَ " صُمْ مِنْ كُلِّ تِسْعَةِ أَيَّامٍ يَوْمًا وَلَكَ أَجْرُ تِلْكَ الثَّمَانِيَةِ " . قُلْتُ إِنِّي أَقْوَى مِنْ ذَلِكَ . قَالَ " فَصُمْ مِنْ كُلِّ ثَمَانِيَةِ أَيَّامٍ يَوْمًا وَلَكَ أَجْرُ تِلْكَ السَّبْعَةِ " . قُلْتُ إِنِّي أَقْوَى مِنْ ذَلِكَ قَالَ فَلَمْ يَزَلْ حَتَّى قَالَ " صُمْ يَوْمًا وَأَفْطِرْ يَوْمًا " .
It was narrated that 'Abdullah bin 'Amr said: 'Amr said: "I spoke to the Prophet and he said: 'Fast one day out of ten and you will have the reward of the other nine.' I said: 'I am able to do more than that.' He said: 'Fast one day out of eight and you will have the reward of the other eight.' I said: 'I am able to do more than that.' He said: 'Fast one day out of eight and you will have the reward of the other seven.' I said: 'I am able to do more than that.' 'Fast one day and not the next."' Translation Not Available
Book Ref: Sunan An Nisai Book 22 Hadith 2395
Web Ref: Sunan An Nisai Vol 3 Book 22 Hadith 2397