وَلا تُجادِلوا أَهلَ الكِتابِ إِلّا بِالَّتي هِيَ أَحسَنُ إِلَّا الَّذينَ ظَلَموا مِنهُم ۖ وَقولوا آمَنّا بِالَّذي أُنزِلَ إِلَينا وَأُنزِلَ إِلَيكُم وَإِلـٰهُنا وَإِلـٰهُكُم واحِدٌ وَنَحنُ لَهُ مُسلِمونَ

And do not argue with the People of the Scripture except in a way that is best, except for those who commit injustice among them, and say, "We believe in that which has been revealed to us and revealed to you. And our God and your God is one; and we are Muslims [in submission] to Him."