Sahih al-Bukhari 4310
صحيح البخاري#4310Sahih(In another narration) Ibn `Umar said:"There is no migration today or after Allah's Messenger (ﷺ)." (and completed his statement as above)
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: 64:341