(Az-Zukhuruf) 43 : 21
أَمْ آتَيْنَاهُمْ كِتَابًا مِنْ قَبْلِهِ فَهُمْ بِهِ مُسْتَمْسِكُونَ

Or have We given them a Book before It; thus are they holding fast to It?

The Arabic Quran-reading Fujjar, by hiding and rejecting Adhikr (the Best Interpretation of the Lord’s Book mentioned in verse 25: 33), are following and propagating the books written by hypocrites and pseudo-prophets. They have read in verses 9: 67-68 that such hypocrites and kuffar—who are commanding the evils and forbidding the good—are promised Hellfire. See explanation 4: 163-164; 23: 117; and 41: 41-43.