يُؤَخَّرْ فَيُوضَعْ فِي كِتَابٍ فَيُدَّخَرْ ۞ لِيَوْمِ الْحِسَابِ أَوْ يُعَجَّلْ فَيُنْقَمِ
Meaning: Its requital may be deferred, recorded and reserved for the Day of Reckoning, or brought forward as immediate retribution.
The sequence yuʾakhkhar, yūḍaʿ, and yuddakhar depicts postponement, recording, and reservation for a future reckoning. Li-yawmi al-ḥisāb explicitly invokes the Day of Account.
Aw yuʿajjal fa-yunqam supplies the alternative: retribution can occur sooner. The lesson of the passage is not to specify a timetable for punishment, but to deny that secret betrayal escapes accountability, whether the consequence is delayed or brought forward.