Surah An Nahl Tafseer

A passing brief enjoyment (will be theirs), but they will suffer a painful torment.

As for this world, it is transient pleasure, and in the Hereafter, theirs will be a severe punishment, as Allah says:

نُمَتِّعُهُمْ قَلِيلً ثُمَّ نَضْطَرُّهُمْ إِلَى عَذَابٍ غَلِيظٍ

We let them enjoy for a little while, then in the end We will drive them into an unrelenting punishment. (31:24)

and,

قُلْ إِنَّ الَّذِينَ يَفْتَرُونَ عَلَى اللَّهِ الْكَذِبَ لَا يُفْلِحُونَ

مَتَـعٌ فِى الدُّنْيَا ثُمَّ إِلَيْنَا مَرْجِعُهُمْ ثُمَّ نُذِيقُهُمُ الْعَذَابَ الشَّدِيدَ بِمَا كَانُواْ يَكْفُرُونَ

Verily, those who invent a lie against Allah, will never be successful. (A brief) enjoyment in this world! and then to Us will be their return, then We shall make them taste the severest torment because they disbelieved. (10:69-70