brevity of worldly life

وَيَوْمَ يَحْشُرُهُمْ كَأَن لَّمْ يَلْبَثُوٓا۟ إِلَّا سَاعَةً مِّنَ ٱلنَّهَارِ يَتَعَارَفُونَ بَيْنَهُمْ ۚ قَدْ خَسِرَ ٱلَّذِينَ كَذَّبُوا۟ بِلِقَآءِ ٱللَّهِ وَمَا كَانُوا۟ مُهْتَدِينَ

And on the Day when He will gather them, [it will be] as if they had not remained [in the world] but an hour of the day, [and] they will know each other. Those will have lost who denied the meeting with Allāh and were not guided.

يَتَخَـٰفَتُونَ بَيْنَهُمْ إِن لَّبِثْتُمْ إِلَّا عَشْرًا

They will murmur among themselves, "You remained not but ten [days in the world]."

نَّحْنُ أَعْلَمُ بِمَا يَقُولُونَ إِذْ يَقُولُ أَمْثَلُهُمْ طَرِيقَةً إِن لَّبِثْتُمْ إِلَّا يَوْمًا

We are most knowing of what they say when the best of them in manner [i.e., wisdom or speech] will say, "You remained not but one day."

قَـٰلَ إِن لَّبِثْتُمْ إِلَّا قَلِيلًا ۖ لَّوْ أَنَّكُمْ كُنتُمْ تَعْلَمُونَ

He will say, "You stayed not but a little - if only you had known.

كَأَنَّهُمْ يَوْمَ يَرَوْنَهَا لَمْ يَلْبَثُوٓا۟ إِلَّا عَشِيَّةً أَوْ ضُحَىٰهَا

It will be, on the Day they see it, as though they had not remained [in the world] except for an afternoon or a morning thereof.