Qaf - 50:37

إِنَّ فِي ذَلِكَ لَذِكْرَى لِمَن كَانَ لَهُ قَلْبٌ أَوْ أَلْقَى السَّمْعَ وَهُوَ شَهِيدٌ
[50:37]
Most surely there is a reminder in this for him who has a heart or he gives ear and is a witness.
Verily in this is a Message for any that has a heart and understanding or who gives ear and earnestly witnesses (the truth).
Lo! therein verily is a reminder for him who hath a heart, or giveth ear with full intelligence.