Sahih al-Bukhari 7239
صحيح البخاري#7239SahihNarrated 'Ata:One night the Prophet (ﷺ) delayed the `Isha' prayer whereupon `Umar went to him and said, "The prayer, O Allah's Messenger (ﷺ)! The women and children had slept." The Prophet (ﷺ) came out with water dropping from his head, and said, "Were I not afraid that it would be hard for my followers (or for the people), I would order them to pray `Isha prayer at this time." (Various versions of this Hadith are given by the narrators with slight differences in expression but not in content)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 94:14