Az Zukhruf, 21 Ayah
43:21
أَمۡ ءَاتَيۡنَٰهُمۡ كِتَٰبٗا مِّن قَبۡلِهِۦ فَهُم بِهِۦ مُسۡتَمۡسِكُونَ ٢١
'Am 'Ātaynāhum Kitābāan Min Qablihi Fahum Bihi Mustamsikūna
Or have We given them a book before the Qur'an to which they are adhering?