Sunan an-Nasa'i 2433
سنن النسائي#2433Sahihأَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنِي سَيْفُ بْنُ عُبَيْدِ اللَّهِ، مِنْ خِيَارِ الْخَلْقِ قَالَ حَدَّثَنَا الأَسْوَدُ بْنُ شَيْبَانَ، عَنْ أَبِي نَوْفَلِ بْنِ أَبِي عَقْرَبٍ، عَنْ أَبِيهِ، قَالَ سَأَلْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم عَنِ الصَّوْمِ فَقَالَ " صُمْ يَوْمًا مِنَ الشَّهْرِ " . قُلْتُ يَا رَسُولَ اللَّهِ زِدْنِي زِدْنِي . قَالَ " تَقُولُ يَا رَسُولَ اللَّهِ زِدْنِي زِدْنِي يَوْمَيْنِ مِنْ كُلِّ شَهْرٍ " . قُلْتُ يَا رَسُولَ اللَّهِ زِدْنِي زِدْنِي إِنِّي أَجِدُنِي قَوِيًّا . فَقَالَ " زِدْنِي زِدْنِي أَجِدُنِي قَوِيًّا " . فَسَكَتَ رَسُولُ اللَّهِ صلى الله عليه وسلم حَتَّى ظَنَنْتُ أَنَّهُ لَيَرُدُّنِي قَالَ " صُمْ ثَلاَثَةَ أَيَّامٍ مِنْ كُلِّ شَهْرٍ " .
It was narrated from Abu Nawfal bin Abi 'Aqrab that his father said:"I asked the Messenger of Allah about fasting and he said: 'Fast one day of the month.' I said: 'Fast one day of the month.' I said: 'O Messenger of Allah, let me do more, let me do more.' He said: 'Let me do more, let mo do more; I am able for it.' Then the Messenger of Allah fell silent until I thought that he was going to refuse my request. Then he said: 'fast three days of each month
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 22:344