13:43
وَيَقُولُ ٱلَّذِينَ كَفَرُوا۟ لَسْتَ مُرْسَلًا ۚ قُلْ كَفَىٰ بِٱللَّهِ شَهِيدًۢا بَيْنِى وَبَيْنَكُمْ وَمَنْ عِندَهُۥ عِلْمُ ٱلْكِتَـٰبِ
wayaqūlu alladhīna kafarū lasta mur'salan qul kafā bil-lahi shahīdan baynī wabaynakum waman ʿindahu ʿil'mu l-kitābi
They say, ‘You have not been sent.’ Say, ‘God is sufficient witness between me and you: all knowledge of the Scripture comes from Him.’
And those who disbelieved, say: "You (O Muhammad صلى الله عليه و سلم) are not a Messenger." Say: "Sufficient as a witness between me and you is Allâh and those too who have knowledge of the Scripture (such as ‘Abdullâh bin Salâm and other Jews and Christians who embraced Islâm)."