Riyad as-Salihin
Riyad as-Salihin 1142
Merit of the (Optional) Duha (Forenoon) Prayer
Arabic hadith text
وعن أم هانئ فاختة بنت أبي طالب رضي الله عنها قالت: ذهبت إلى رسول الله صلى الله عليه وسلم عام الفتح فوجدته يغتسل فلما فرغ من غسله صلى ثمان ركعات، وذلك ضحى" ((متفق عليه وهذا مختصر لفظ إحدى روايات مسلم))
Translation
Umm Hani, daughter of Abu Talib (May Allah be pleased with her) reported
I went to the Messenger of Allah (ﷺ) on the day of the conquest of Makkah. He was taking a bath at that time. When he finished the bath, he performed eight Rak'ah (of optional) prayers. This was during the Duha (forenoon).[Al-Bukhari and Muslim].