"And indeed, upon you is the curse until the Day of Recompense," meaning the reckoning; that is: the Day of Resurrection. The curse is upon him also on the Day of Resurrection forever.
﴿وَإِنَّ عَلَيْكَ اللَّعْنَةَ إِلَى يَوْمِ الدّين﴾ الْحِسَابِ؛ يَعْنِي: يَوْمَ الْقِيَامَةِ، وَعَلَيْهِ اللَّعْنَةُ أَيْضًا، يَوْمَ الْقِيَامَةِ أَبَدًا.
