29:66
لِيَكْفُرُوا۟ بِمَآ ءَاتَيْنَـٰهُمْ وَلِيَتَمَتَّعُوا۟ ۖ فَسَوْفَ يَعْلَمُونَ
liyakfurū bimā ātaynāhum waliyatamattaʿū fasawfa yaʿlamūna
Let them show their ingratitude for what We have given them; let them take their enjoyment- soon they will know.
So that they become ingrate for that which We have given them, and that they take their enjoyment (as a warning and a threat), but they will come to know.