Sahih Bukhari
Virtues and Merits of the Prophet (pbuh) and his Companions
Volume: 004 / Book Number: 056 / Hadith Number: 788
Narrated Abu Huraira:
The Prophet said, "The Hour will not be established till you fight with the Khudh and the Kirman from among the non-Arabs. They will be of red faces, flat noses and small eyes; their faces will look like flat shields, and their shoes will be of hair."