Sunan an-Nasa'i 1683
سنن النسائي#1683SahihAbu Nadrah Al-'Awaqi narrated that he heard Abu Sa'eed Al-Khudri say:"The Messenger of Allah (ﷺ) was asked about witr and he said: 'Pray witr before dawn (Subh)
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: 20:86