The Book of Tribulations and Portents of the Last Hour
حَدَّثَنَا أَبُو كُرَيْبٍ، حَدَّثَنَا وَكِيعٌ، وَأَبُو أُسَامَةَ عَنْ إِسْمَاعِيلَ بْنِ أَبِي خَالِدٍ، عَنْ قَيْسِ، بْنِ أَبِي حَازِمٍ عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " تُقَاتِلُونَ بَيْنَ يَدَىِ السَّاعَةِ قَوْمًا نِعَالُهُمُ الشَّعَرُ كَأَنَّ وُجُوهَهُمُ الْمَجَانُّ الْمُطْرَقَةُ حُمْرُ الْوُجُوهِ صِغَارُ الأَعْيُنِ " .Abu Huraira reported Allah's Messenger (ﷺ) as saying:You shall fight in the hours to come against a nation wearing shoes made of hair and faces like hammered shields, with red complexion and small eyes
From Sahih Muslim, whose reports the scholars accept as authentic.