At-Taubah - 9:42

لَوْ كَانَ عَرَضًا قَرِيبًا وَسَفَرًا قَاصِدًا لاَّتَّبَعُوكَ وَلَـكِن بَعُدَتْ عَلَيْهِمُ الشُّقَّةُ وَسَيَحْلِفُونَ بِاللّهِ لَوِ اسْتَطَعْنَا لَخَرَجْنَا مَعَكُمْ يُهْلِكُونَ أَنفُسَهُمْ وَاللّهُ يَعْلَمُ إِنَّهُمْ لَكَاذِبُونَ
[9:42]
Had it been a near advantage and a short journey, they would certainly have followed you, but the tedious journey was too long for them; and they swear by Allah: If we had been able, we would certainly have gone forth with you; they cause their own souls to perish, and Allah knows that they are most surely
If there had been immediate gain (in sight), and the journey easy, they would (all) without doubt have followed thee, but the distance was long, (and weighed) on them. They would indeed swear by Allah, "If we only could, we should certainly have come out with you": They would destroy their own souls; for Allah doth know that they are certainly lying.
Had it been a near adventure and an easy journey they had followed thee, but the distance seemed too far for them. Yet will they swear by Allah (saying): If we had been able we would surely have set out with you. They destroy their souls, and Allah knoweth that they verily are liars.