Surah Al-Baqarah — Verse 137

فَإِنْ ءَامَنُوا۟ بِمِثْلِ مَآ ءَامَنتُم بِهِۦ فَقَدِ ٱهْتَدَوا۟ ۖ وَّإِن تَوَلَّوْا۟ فَإِنَّمَا هُمْ فِى شِقَاقٍۢ ۖ فَسَيَكْفِيكَهُمُ ٱللَّهُ ۚ وَهُوَ ٱلسَّمِيعُ ٱلْعَلِيمُ

Fa in aamanoo bimisli maaa aamantum bihee faqadih tadaw wa in tawallaw fa innamaa hum fee shiqaaq; fasayakfeekahumul laah; wa Huwas Samee'ul Aleem

So if they believe in the same as you believe in, then they have been [rightly] guided; but if they turn away, they are only in dissension, and Allah will be sufficient for you against them. And He is the Hearing, the Knowing.

All verses of Surah Al-Baqarah