Ash-Shu'araa • EN-AL-JALALAYN
﴿ وَمَا يَأْتِيهِم مِّن ذِكْرٍۢ مِّنَ ٱلرَّحْمَٰنِ مُحْدَثٍ إِلَّا كَانُوا۟ عَنْهُ مُعْرِضِينَ ﴾
“[But We have not willed it:] and so, whenever there comes unto them any fresh reminder from the Most Gracious, they [who are blind of heart] always - turn their backs upon it:”
And there would never come to them from the Compassionate One any remembrance any revelation from the Qur’ān that is new muhdathin is an explicative adjective but that they used to disregard it.