Abu Darda reported,

My beloved instructed me to do three things, which I will never abandon as long as I live: to fast three days of every month, to pray the forenoon prayer, and not to sleep until I have performed the witr prayer.

Azami 2926

Sahih

عن أبي الدرداء قال

أوصاني حبيبي بثلاث، لن أدعهن ما عشت: بصيام ثلاثة أيام من كل شهر، وصلاة الضحى، وبأن لا أنام حتى أوتر.

الأعظمي 2926صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Prayer
Chapter
Prayer of fear
Section
Recommendation of duha prayer, its minimum being two rakahs and its most complete form being eight rakahs
Numbering
Jami al-Kamil 2926 (2nd edition)
Azami 2926