(31) باب صَلاَةِ الضُّحَى فِي السَّفَرِ
Narrated `Abdur Rahman bin Abi Laila:
Only Um Hani narrated to me that she had seen the Prophet (ﷺ) offering the Duha prayer. She said, "On the day of the conquest of Mecca, the Prophet (ﷺ) entered my house, took a bath and offered eight rak`at (of Duha prayers. I had never seen the Prophet (ﷺ) offering such a light prayer but he performed bowing and prostrations perfectly .
Reference: Sahih al-Bukhari 1176
In-book reference: Book 19, Hadith 54
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 21, Hadith 272