Qur'an 47:27

فَكَيْفَ إِذَا تَوَفَّتْهُمُ ٱلْمَلَـٰٓئِكَةُ يَضْرِبُونَ وُجُوهَهُمْ وَأَدْبَـٰرَهُمْ

Then how (will it be with them) when the angels gather them, smiting their faces and their backs!