Sunan an-Nasa'i 1717
سنن النسائي#1717SahihHisham bin Urwah narrated from his father, from Aishah, that:The Prophet (ﷺ) used to pray witr with five and he did not sit except in the last (rak'ah) of them
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 20:120