سورة Ta-Ha 20:15

إِنَّ ٱلسَّاعَةَ ءَاتِيَةٌ أَكَادُ أُخْفِيهَا لِتُجْزَىٰ كُلُّ نَفْسٍۭ بِمَا تَسْعَىٰ ١٥

The Hour is sure to come. My Will is to keep it hidden, so that every soul may be rewarded according to their efforts