Surah Ar-Rad Verse 43 - English Translation by Ahmed Ali
Surah Ar-Radوَيَقُولُ ٱلَّذِينَ كَفَرُواْ لَسۡتَ مُرۡسَلٗاۚ قُلۡ كَفَىٰ بِٱللَّهِ شَهِيدَۢا بَيۡنِي وَبَيۡنَكُمۡ وَمَنۡ عِندَهُۥ عِلۡمُ ٱلۡكِتَٰبِ
Yet those who are disbelievers say: "You are not the apostle sent (by God)." Tell them: "God is sufficient as witness between me and you, and he who has knowledge of the Book