It was narrated that Zainab bint Jahsh said: "The Messenger of Allah ﷺ woke up red in the face and said: La ilaha illallah, woe to the Arabs from an evil that has drawn nigh. Today a hole has been opened in the barrier of Gog and Magog. And he gestured to indicate the size of the hole.” Zainab said: “I said: ‘O Messenger of Allah! ﷺ Will we be destroyed when there are righteous people among us?’ He said: ‘If sin and evil deeds increase.” (Sahih)