Surah Al-Imran, ayah 64

قُلۡ يَٰٓأَهۡلَ ٱلۡكِتَٰبِ تَعَالَوۡاْ إِلَىٰ كَلِمَةٖ سَوَآءِۭ بَيۡنَنَا وَبَيۡنَكُمۡ أَلَّا نَعۡبُدَ إِلَّا ٱللَّهَ وَلَا نُشۡرِكَ بِهِۦ شَيۡـٔٗا وَلَا يَتَّخِذَ بَعۡضُنَا بَعۡضًا أَرۡبَابٗا مِّن دُونِ ٱللَّهِۚ فَإِن تَوَلَّوۡاْ فَقُولُواْ ٱشۡهَدُواْ بِأَنَّا مُسۡلِمُونَ ٦٤

Qul yā'ahlal-kitābi ta'ālaw ilā kalimatin sawā'i baynanā wabaynakum allā na'buda illallāha walā nushrika bihī shay'an walā yattakhidha ba'dunā ba'dan arbābam min dūnillāhi fa in tawallaw faqūlushhadū bi annā muslimūn

Say, "O People of the Scripture, come to a word that is equitable between us and you - that we will not worship except Allāh and not associate anything with Him and not take one another as lords instead of Allāh."¹²⁸ But if they turn away, then say, "Bear witness that we are Muslims [submitting to Him]."