Hadith 298

Bulugh al-Maram

Book 2: The Book of Prayer
Hadith 298
وَلَهُ عَنْهَا: { مَا رَأَيْتُ رَسُولَ اَللَّهِ ‏- صلى الله عليه وسلم ‏-يُصَلِّي سُبْحَةَ اَلضُّحَى قَطُّ, وَإِنِّي لَأُسَبِّحُهَا } 1‏ .‏
In yet another narration of Muslim from her:

['Aishah (RA)] said, "I have never seen Allah's Messenger (ﷺ) offering Duha prayer, yet I offer it."