Sahih Muslim 1443
صحيح مسلم#1443SahihA'isha. the wife of the Messenger of Allah (ﷺ), reported:The Messenger of Allah (ﷺ) deferred one night the 'Isya' prayer. And this is called 'Atama. And the Messenger of Allah (ﷺ) did not come out till Umar b. Khattab told (him) that the women and children had gone to sleep. So the Messenger of Allah (ﷺ) came out towards them and said to the people of the mosque: None except you from the people of the earth waits for it (for the night prayer at this late hour), and it was before Islam had spread amongst people. And in the narration transmitted by Ibn Shihab the Messenger of Allah (ﷺ) is reported to have said: It is not meant that you should compel the Messenger of Allah (ﷺ) for prayer. And (this he said) when 'Umar b. Khattab called (the Holy Prophet) in a loud voice
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 5:276