Those who disbelieved will say, “You are not a messenger!” Say, “God suffices as a witness between me and you, and those who possess knowledge of the scripture.”
وَيَقولُ الَّذينَ كَفَروا لَستَ مُرسَلًا قُل كَفىٰ بِاللَّهِ شَهيدًا بَينى وَبَينَكُم وَمَن عِندَهُ عِلمُ الكِتٰبِ
wa yaqoolul lazeena kafaroo lasta mursalaa; qul kafaa billaahi shaheedam bainee wa bainakum wa man ‘indahoo ‘ilmul Kitaab