‘Uthman b. Hakim al-Ansari said: I asked Sa’id b. Jubair about fasting In Rajab, and we were then passing through the month of Rajab, whereupon he said: I heard Ibn ‘Abbas (Allah be pleased with both of them) as saying: The Messenger of Allah (may peace be upon him) used to observe fast (so continuously) that we (were inclined) to say that he would not break (them) and did not observe them so conti- nuously) that we (were inclined to say) that he would not observe fast.
Hadith In Arabic Text :
حدثنا أبو بكر بن أبي شيبة، حدثنا عبد الله بن نمير، ح وحدثنا ابن نمير، حدثنا أبي، حدثنا عثمان بن حكيم الأنصاري، قال سألت سعيد بن جبير عن صوم، رجب – ونحن يومئذ في رجب – فقال سمعت ابن عباس – رضى الله عنهما – يقول كان رسول الله صلى الله عليه وسلم يصوم حتى نقول لا يفطر . ويفطر حتى نقول لا يصوم .
Chapter : The Book of Fasting – كتاب الصيام