اَمۡ اٰتَيۡنٰهُمۡ كِتٰبًا مِّنۡ قَبۡلِهٖ فَهُمۡ بِهٖ مُسۡتَمۡسِكُوۡنَ

Or have We given them a book before the Qur'an to which they are adhering