Hadith 4:884
Waki’ narrated to us, from Kahmas, from ‘Abdullah ibn Shaqiq, from ‘A’ishah, he said: I asked her about the fasting of the Prophet, may Allah bless him and grant him peace. She said: I did not know him to have fasted a full month, such that he would break his fast during it, except for Ramadan; nor did he leave it [Ramadan] without fasting [some] of it.
حدثنا وكيع عن كهمس عن عبد الله بن شقيق عن عائشة قال سألتها عن صيام النبي صلى الله عليه وسلم فقالت ما علمته صام شهرا حتى يفطر فيه إلا رمضان ولا أفطره حتى يصوم منه