وَكَذٰلِكَ أَعثَرنا عَلَيهِم لِيَعلَموا أَنَّ وَعدَ اللَّهِ حَقٌّ وَأَنَّ السّاعَةَ لا رَيبَ فيها
And thus We made their case known to the people, that they might know that the Promise of Allāh is true, and that there can be no doubt about the Hour.
[al-Kahf, 18:21]