﴿أَمْ آتَيْنَاهُمْ كِتَابًا مِنْ قَبْلِهِ فَهُمْ بِهِ مُسْتَمْسِكُونَ﴾ (21) Or have We given them a book before it [i.e., the Qur’ān] to which they are adhering?
