Sahih Muslim , Book 41, Hadith 6957 (USC-MSA) ⓘ
Abu Huraira reported Allah's Messenger as saying: The Last Hour would not come until a people wearing shoes of hair fight against you having their faces like hammered shields.
وَحَدَّثَنِي حَرْمَلَةُ بْنُ يَحْيَى، أَخْبَرَنَا ابْنُ وَهْبٍ، أَخْبَرَنِي يُونُسُ، عَنِ ابْنِ شِهَابٍ، أَخْبَرَنِي سَعِيدُ بْنُ الْمُسَيَّبِ، أَنَّ أَبَا هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ تَقُومُ السَّاعَةُ حَتَّى تُقَاتِلَكُمْ أُمَّةٌ يَنْتَعِلُونَ الشَّعَرَ وُجُوهُهُمْ مِثْلُ الْمَجَانِّ الْمُطْرَقَةِ " .
also referenced under: Book 54, Hadith 77 (In-Book) & Hadith 2912 (Reference)