فَرِحَ ٱلْمُخَلَّفُونَ بِمَقْعَدِهِمْ خِلَٰفَ رَسُولِ ٱللَّهِ وَكَرِهُوٓا۟ أَن يُجَٰهِدُوا۟ بِأَمْوَٰلِهِمْ وَأَنفُسِهِمْ فِى سَبِيلِ ٱللَّهِ وَقَالُوا۟ لَا تَنفِرُوا۟ فِى ٱلْحَرِّ ۗ قُلْ نَارُ جَهَنَّمَ أَشَدُّ حَرًّۭا ۚ لَّوْ كَانُوا۟ يَفْقَهُونَ
Those who remained behind rejoiced in their staying [at home] after [the departure of] the Messenger of Allah and disliked to strive with their wealth and their lives in the cause of Allah and said, "Do not go forth in the heat." Say, "The fire of Hell is more intensive in heat" - if they would but understand.
Those who were left behind, from [the journey to] Tabūk, rejoiced at remaining behind the Messenger of God, and were averse to striving with their wealth and their lives in the way of God. And they said, that is, they said to one another, ‘Do not go forth, do not set off to [join] the fight, in the heat!’ Say: ‘The fire of Hell is hotter, than Tabūk, and more worthy for them to guard against, by not staying behind, did they but understand’, this, they would not have stayed behind.