I heard Messenger of Allah ﷺ as saying: The people would run away from the Dajjal seeking shelter in the mountains. She said: Where would be the Arabs then in that day? He said: They would be small in number. (Using translation from Muslim 2945a)
أَنَّهَا سَمِعَتِ النَّبِيَّ ﷺ يَقُولُ «لَيَفِرَّنَّ النَّاسُ مِنَ الدَّجَّالِ فِي الْجِبَالِ» قَالَتْ أُمُّ شَرِيكٍ يَا رَسُولَ اللهِ فَأَيْنَ الْعَرَبُ يَوْمَئِذٍ؟ قَالَ هُمْ قَلِيلٌ