It wasnarrated from Umm Hani' bint Abu Talib that on the day of theConquest (of Makkah) the Messenger of Allah (ﷺ) prayed voluntaryDuha with eight Rak'ah, saying the Salam after each two Rak'ah. (DE)
English reference (DE): Vol. 1, Book 5, Hadith 1323 (DE)
Arabic reference (DE): Book 5, Hadith 1384 (DE)