Sahih al-Bukhari 7135
صحيح البخاري#7135SahihNarrated Zainab bint Jahsh:That one day Allah's Messenger (ﷺ) entered upon her in a state of fear and said, "None has the right to be worshipped but Allah! Woe to the Arabs from the Great evil that has approached (them). Today a hole has been opened in the dam of Gog and Magog like this." The Prophet (ﷺ) made a circle with his index finger and thumb. Zainab bint Jahsh added: I said, "O Allah's Apostle! Shall we be destroyed though there will be righteous people among us?" The Prophet (ﷺ) said, "Yes, if the (number) of evil (persons) increased
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: 92:82