Sahih al-Bukhari 3279
صحيح البخاري#3279SahihNarrated `Abdullah bin `Umar:I saw Allah's Messenger (ﷺ) pointing towards the east saying, "Lo! Afflictions will verily emerge hence; afflictions will verily emerge hence where the (side of the head of) Satan appears
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: 59:88