I heard Messenger of Allah ﷺ saying, "Near the Hour you will fight with people who will wear hairy shoes; and you will also fight people with flat faces like shields."
سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ بَيْنَ يَدَىِ السَّاعَةِ تُقَاتِلُونَ قَوْمًا يَنْتَعِلُونَ الشَّعَرَ وَتُقَاتِلُونَ قَوْمًا كَأَنَّ وُجُوهَهُمُ الْمَجَانُّ الْمُطْرَقَةُ