Jami` at-Tirmidhi 443
جامع الترمذي#443SahihAishah narrated:"The Prophet (S) would pray nine Rak'ah in the night
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiSahih
In-book reference: 2:296