سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 2388
The Book of Fasting
Fasting one day, and not fasting one day, and the difference in the wording of the transmitters Of The Narration Of 'Abdullah Bin 'Amr About It
قَالَ وَفِيمَا قَرَأَ عَلَيْنَا أَحْمَدُ بْنُ مَنِيعٍ قَالَ حَدَّثَنَا هُشَيْمٌ، قَالَ أَنْبَأَنَا حُصَيْنٌ، وَمُغِيرَةُ، عَنْ مُجَاهِدٍ، عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم أَفْضَلُ الصِّيَامِ صِيَامُ دَاوُدَ عَلَيْهِ السَّلاَمُ كَانَ يَصُومُ يَوْمًا وَيُفْطِرُ يَوْمًا .
It was narrated that 'Abdullah bin 'Amr said: "The Messenger of Allah said: "The best of fasting is the fast of Dawud, peace be upon him. He used to fast for one day and break his fast for one day."' 'Ata said: "someone who heard him told me that Ibn 'Umar (said) that the Prophet (ﷺ) said: 'Whoever fasts every day of his life, then he has not fasted."
Sunan an-Nasa'i, 2388Sahih (Darussalam)