Chapter 60: Prophets
Narrated Zainab bint Jahsh: That the Prophet (ﷺ) once came to her in a state of fear and said, "None has the right to be worshipped but
Allah. Woe unto the Arabs from a danger that has come near. An opening has been made in the wall
of Gog and Magog like this," making a circle with his thumb and index finger. Zainab bint Jahsh said,
"O Allah' s Messenger (ﷺ)! Shall we be destroyed even though there are pious persons among us?" He said,
"Yes, when the evil person will increase."
Sahih al-Bukhari 3346