Surah Ar-Ra'd 13:43 — سُورَةُ الرَّعۡدِ

وَيَقُولُ ٱلَّذِينَ كَفَرُوا۟ لَسْتَ مُرْسَلًۭا ۚ قُلْ كَفَىٰ بِٱللَّهِ شَهِيدًۢا بَيْنِى وَبَيْنَكُمْ وَمَنْ عِندَهُۥ عِلْمُ ٱلْكِتَٰبِ ﴿43﴾

They who disbelieve say: Thou art no messenger (of Allah). Say: Allah, and whosoever hath knowledge of the Scripture, is sufficient witness between me and you.

Surah Ar-Ra'd (The Thunder), ayah 43 of 43. Recited by Mishary Rashid Alafasy (مشاري العفاسي).