It is narrated from Sayyidah Umm Sharik (may Allah be pleased with her) that she heard the Prophet (peace and blessings be upon him) saying: "People will flee from the Dajjal and take refuge in the mountains." Umm Sharik (may Allah be pleased with her) asked: O Messenger of Allah! Where will the Arabs be on that day? He (peace and blessings be upon him) said: "At that time they will be few (in number)."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21711