Anas bin Malik reported,

Whenever we wished to see the Messenger of Allah ﷺ praying, we would see him praying, and whenever we wished to see him sleeping, we would see him sleeping. He would fast so much during a month that we would say he does not intend to break his fast at all that month, and he would go without fasting so much during a month that we would say he does not intend to fast at all that month.

Ahmad 13781

Sahih

حدثنا عبد الله بن بكر حدثنا حميد

عن أنس قال

ما كنا نشاء أن نرى رسول الله ﷺ مصليا إلا رأيناه أو نائما إلا رأيناه قال وكان يصوم من الشهر حتى نقول لا نراه يريد أن يفطر منه شيئا ويفطر من الشهر حتى نقول لا نراه يريد أن يصوم منه شيئا

أحمد 13781صحيح
Contents
Reference
Commentary
Ayat
Collection
Musnad Ahmad
Book
Anas bin Malik
Numbering
Darussalam 13781
Ahmad 13781