ولو ترى إذ يتوفى الذين كفروا الملائكة يضربون وجوههم وأدبارهم وذوقوا عذاب الحريق
{ And if you could only see when the angels take the lives of those who have disbelieved – they strike their faces and their buttocks: “Taste the torture of the burning fire!” }
The Quran, Chapter 8 verse 50