29:66
لِيَكْفُرُوا۟ بِمَآ ءَاتَيْنَـٰهُمْ وَلِيَتَمَتَّعُوا۟ ۖ فَسَوْفَ يَعْلَمُونَ ٦٦
Saheeh International
So that they will deny what We have granted them, and they will enjoy themselves. But they are going to know.
Tafsir of "Ibn Kathir" (English)
So that they become ingrate for that which We have given them, and that they take their enjoyment, but they will come to know