43:21
أَمْ ءَاتَيْنَـٰهُمْ كِتَـٰبًا مِّن قَبْلِهِۦ فَهُم بِهِۦ مُسْتَمْسِكُونَ
am ātaynāhum kitāban min qablihi fahum bihi mus'tamsikūna
or have We perhaps given them a book before this one, to which they hold fast?
Or have We given them any Book before this (the Qur’ân) to which they are holding fast?