Quran 9:56 from Surah At-Tawba on Divine Marvels.
وَيَحۡلِفُونَ بِٱللَّهِ إِنَّهُمۡ لَمِنكُمۡ وَمَا هُم مِّنكُمۡ وَلَٰكِنَّهُمۡ قَوۡمٞ يَفۡرَقُونَ
English translation: And they swear by Allah indeed they surely (are) of you while not they (are) of you but they (are) a people (who) are afraid
Transliteration: wayahlifuna bil-lahi innahum laminkum wama hum minkum walakinnahum qawmun yafraquna