Sunan Abi Dawud 1291
سنن أبي داود#1291SahihNarrated Ibn Abi Laila:No one told us that the Prophet (ﷺ) had offered Duha prayer except Umm Hani. She said that the Prophet (ﷺ) had taken bath in her house on the day of the Conquest of Mecca and prayed eight rak'ahs. But no one saw him afterwards praying these rak'ahs
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Bukhari (1103) Sahih Muslim (336 After 719)
In-book reference: 5:42