وَيَقُولُ ٱلَّذِينَ كَفَرُواْ لَسْتَ مُرْسَلاًۚ قُلْ كَفَىٰ بِٱللَّهِ شَهِيدَۢا بَيْنِى وَبَيْنَكُمْ وَمَنْ عِندَهُۥ عِلْمُ ٱلْكِتَـٰبِ ٤٣
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.