20:15
إِنَّ ٱلسَّاعَةَ ءَاتِيَةٌ أَكَادُ أُخْفِيهَا لِتُجْزَىٰ كُلُّ نَفْسٍۭ بِمَا تَسْعَىٰ
Indeed, the Hour is coming - I almost conceal it - so that every soul may be recompensed according to that for which it strives.
Ta-Ha
إِنَّ ٱلسَّاعَةَ ءَاتِيَةٌ أَكَادُ أُخْفِيهَا لِتُجْزَىٰ كُلُّ نَفْسٍۭ بِمَا تَسْعَىٰ
Indeed, the Hour is coming - I almost conceal it - so that every soul may be recompensed according to that for which it strives.
Nearby ayahs help place verse 20:15 in sequence and meaning.
وَأَنَا ٱخْتَرْتُكَ فَٱسْتَمِعْ لِمَا يُوحَىٰٓ
And I have chosen you, so listen to what is revealed [to you].
إِنَّنِىٓ أَنَا ٱللَّهُ لَآ إِلَـٰهَ إِلَّآ أَنَا۠ فَٱعْبُدْنِى وَأَقِمِ ٱلصَّلَوٰةَ لِذِكْرِىٓ
Indeed, I am Allah. There is no deity except Me, so worship Me and establish prayer for My remembrance.
فَلَا يَصُدَّنَّكَ عَنْهَا مَن لَّا يُؤْمِنُ بِهَا وَٱتَّبَعَ هَوَىٰهُ فَتَرْدَىٰ
So do not let one avert you from it who does not believe in it and follows his desire, for you [then] would perish.
وَمَا تِلْكَ بِيَمِينِكَ يَـٰمُوسَىٰ
And what is that in your right hand, O Moses?"