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! Shall we be destroyed even though there are pious persons among us?" He said, "Yes, when the evil person will increase."
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ، حَدَّثَنَا اللَّيْثُ، عَنْ عُقَيْلٍ، عَنِ ابْنِ شِهَابٍ، عَنْ عُرْوَةَ بْنِ الزُّبَيْرِ، أَنَّ زَيْنَبَ ابْنَةَ أَبِي سَلَمَةَ، حَدَّثَتْهُ عَنْ أُمِّ حَبِيبَةَ بِنْتِ أَبِي سُفْيَانَ، عَنْ زَيْنَبَ ابْنَةِ جَحْشٍ ـ رضى الله عنهن أَنَّ النَّبِيَّ صلى الله عليه وسلم دَخَلَ عَلَيْهَا فَزِعًا يَقُولُ " لاَ إِلَهَ إِلاَّ اللَّهُ، وَيْلٌ لِلْعَرَبِ مِنْ شَرٍّ قَدِ اقْتَرَبَ فُتِحَ الْيَوْمَ مِنْ رَدْمِ يَأْجُوجَ وَمَأْجُوجَ مِثْلُ هَذِهِ ". وَحَلَّقَ بِإِصْبَعِهِ الإِبْهَامِ وَالَّتِي تَلِيهَا. قَالَتْ زَيْنَبُ ابْنَةُ جَحْشٍ فَقُلْتُ يَا رَسُولَ اللَّهِ أَنَهْلِكُ وَفِينَا الصَّالِحُونَ قَالَ " نَعَمْ، إِذَا كَثُرَ الْخُبْثُ ".
sunnah.com