Sunan Abu Dawood 2430
Narrated 'Uthman b. Hakim:
I asked Sa'id b. Jubair about fasting during Rajab. He said: Ibn 'Abbas told me that the Messenger of Allah ﷺ used to fast to such an extent that we thought that he would never break his fast ; and he would go without fasting to such and extent that he would never fast.
حَدَّثَنَا إِبْرَاهِيمُ بْنُ مُوسَى، حَدَّثَنَا عِيسَى، حَدَّثَنَا عُثْمَانُ، - يَعْنِي ابْنَ حَكِيمٍ - قَالَ سَأَلْتُ سَعِيدَ بْنَ جُبَيْرٍ عَنْ صِيَامِ رَجَبَ، فَقَالَ أَخْبَرَنِي ابْنُ عَبَّاسٍ، أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يَصُومُ حَتَّى نَقُولَ لاَ يُفْطِرُ وَيُفْطِرُ حَتَّى نَقُولَ لاَ يَصُومُ .
Classification
Sahih (Authentic)
References
Sunan Abu Dawood 2430
Sunan Abu Dawood Vol. 3, Book of Fasting (Kitab Al-Siyam), Hadith 2424