"And We have caused to follow them in this world a curse," meaning: the drowning with which He punished them, "and on the Day of Resurrection,"
﴿وَأَتْبَعْنَاهُمْ فِي هَذِهِ الدُّنْيَا لَعْنَةً﴾ يَعْنِي: الْغَرَقَ الَّذِي عَذَّبَهُمْ بِهِ (وَيَوْمَ الْقِيَامَةِ