وَيَقُولُ ٱلَّذِينَ كَفَرُوا۟ لَسْتَ مُرْسَلًا ۚ قُلْ كَفَىٰ بِٱللَّهِ شَهِيدًۢا بَيْنِى وَبَيْنَكُمْ وَمَنْ عِندَهُۥ عِلْمُ ٱلْكِتَـٰبِ
Wa yaqoolul lazeena kafaroo lasta mursalaa; qul kafaa billaahi shaheedam bainee wa bainakum wa man 'indahoo 'ilmul Kitaab
They say, ‘You have not been sent.’ Say, ‘God is sufficient witness between me and you: all knowledge of the Scripture comes from Him.’
Those who deny say, "You are not a messenger." Say, "God is sufficient as witness between me and you, and so is whoever has knowledge of the Book."