Surat Al-Alaq (The Clot) - العلق

كَلَّا لَئِن لَّمْ يَنتَهِ لَنَسْفَعًۢا بِٱلنَّاصِيَةِ ﴿١٥﴾ نَاصِيَةٍ كَٰذِبَةٍ خَاطِئَةٍ﴿١٦﴾

Nay! if he desist not, We would certainly smite his forehead, A lying, sinful forehead.