فَإِنْ آمَنُوا بِمِثْلِ مَا آمَنتُم بِهِ فَقَدِ اهْتَدَوا ۖ وَّإِن تَوَلَّوْا فَإِنَّمَا هُمْ فِي شِقَاقٍ ۖ فَسَيَكْفِيكَهُمُ اللَّهُ ۚ وَهُوَ السَّمِيعُ الْعَلِيمُ (137)
(2:137) Then if they believe the way you have believed, they have the right guidance,and if they turn away from this, it will become obvious that they are obdurate. Therefore, rest assured that AIIah will suffice to defend you against them: He hears everything and knows every thing.