It is narrated from Sayyidah Zaynab bint Jahsh (may Allah be pleased with her) that she said: The Messenger of Allah (peace and blessings be upon him) woke up from sleep with his (peace and blessings be upon him) face red, and he (peace and blessings be upon him) was saying: "La ilaha illallah (there is none worthy of worship except Allah)! Woe to the Arabs from an evil that has drawn near! Today an opening like this has been made in the barrier of Ya'juj and Ma'juj (Gog and Magog)" and he gestured with his hand indicating ten. Sayyidah Zaynab (may Allah be pleased with her) said: So I said: Shall we be destroyed while there are righteous people among us? He (peace and blessings be upon him) said: "Yes, when wickedness becomes widespread."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20513