(Al-Muaminoon) 23 : 78
وَهُوَ الَّذِي أَنْشَأَ لَكُمُ السَّمْعَ وَالْأَبْصَارَ وَالْأَفْئِدَةَ ۚ قَلِيلًا مَا تَشْكُرُونَ

And He is One Who has made for you the hearing, vision, and intelligence; a few among you are grateful.

The believer who testifies Adhikr will only become grateful. All other Arabic Quran reading Fujjar who have made their food ‘rejecting Adhikr’ are the true disbelievers as explained in verses 4: 150-151. See explanation 2: 152; 16: 78 and 17: 97-98.