Sunan an-Nasa'i 1722

سنن النسائي#1722Sahih

It was narrated that Aishah said:"The Messenger of Allah (ﷺ) used to pray witr with nine rak'ahs, then he would pray two rak'ahs sitting down. When he grew weaker he prayed witr with seven rak'ahs, then he prayed two rak'ahs sitting down

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

In-book reference: 20:125