Quran Al-Baqarah 2:135
وَقَالُواْ كُونُواْ هُودًا أَوۡ نَصَٰرَىٰ تَهۡتَدُواْۗ قُلۡ بَلۡ مِلَّةَ إِبۡرَٰهِـۧمَ حَنِيفٗاۖ وَمَا كَانَ مِنَ ٱلۡمُشۡرِكِينَ ١٣٥
Translation
They say, "Be Jews or Christians [so] you will be guided." Say, "Rather, [we follow] the religion of Abraham, inclining toward truth, and he was not of the polytheists."