Jami` at-Tirmidhi 477
جامع الترمذي#477Da'ifAbu Sa'eed Al-Khudri narrated:"The Prophet would pray Ad-Duha until we would say: 'He will not leave it.' And he would leave it until we would say: 'He will not pray it
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirDaif
Al-AlbaniSahih
Zubair Ali ZaiDaif
In-book reference: 3:25