Anas bin Malik reported,

He was asked about the voluntary prayers and fasting of the Prophet ﷺ. He said, "He used to fast so much during the month that we would say he did not intend to break his fast at all, and he would go without fasting so much that we would say he did not intend to fast at all. There was no time at night we wished to see him praying but we found him praying, nor any time we wished to see him sleeping but we found him sleeping."

Ahmad 13473

Sahih

حدثنا محمد بن عبد الله حدثنا حميد

عن أنس بن مالك

أنه سئل عن صلاة النبي ﷺ وصومه تطوعا قال كان يصوم من الشهر حتى نقول ما يريد أن يفطر منه شيئا ويفطر حتى نقول ما يريد أن يصوم منه شيئا وما كنا نشاء أن نراه من الليل مصليا إلا رأيناه ولا نراه نائما إلا رأيناه

أحمد 13473صحيح
Contents
Reference
Commentary
Ayat
Collection
Musnad Ahmad
Book
Anas bin Malik
Numbering
Darussalam 13473
Ahmad 13473