Sunan an-Nasa'i 3442
سنن النسائي#3442SahihIt was narrated that 'Aishah said:"The Messenger of Allah gave his wives the choice but that was not a divorce
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 ZaiHasan
In-book reference: 27:54