Sunan an-Nasa'i 1673
سنن النسائي#1673SahihIt was narrated that Abdullah bin Umar said that:A man asked the Messenger of Allah (ﷺ) about prayers at night. The Messenger of Allah (ﷺ) said: "prayers at night are (offered) two by two, then if you fear that dawn will come, pray witr with one
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 ZaiIsnaad Sahih
In-book reference: 20:76