Surah At-Tawbah 9:56
وَيَحْلِفُونَ بِٱللَّهِ إِنَّهُمْ لَمِنكُمْ وَمَا هُم مِّنكُمْ وَلَٰكِنَّهُمْ قَوْمٌ يَفْرَقُونَ ٥٦
EnglishSahih International
And they swear by Allah that they are from among you while they are not from among you; but they are a people who are afraid.