﴿ أَلَمْ تَرَ إِلَى ٱلَّذِينَ قِيلَ لَهُمْ كُفُّوٓا۟ أَيْدِيَكُمْ وَأَقِيمُوا۟ ٱلصَّلَوٰةَ وَءَاتُوا۟ ٱلزَّكَوٰةَ فَلَمَّا كُتِبَ عَلَيْهِمُ ٱلْقِتَالُ إِذَا فَرِيقٌۭ مِّنْهُمْ يَخْشَوْنَ ٱلنَّاسَ كَخَشْيَةِ ٱللَّهِ أَوْ أَشَدَّ خَشْيَةًۭ ۚ وَقَالُوا۟ رَبَّنَا لِمَ كَتَبْتَ عَلَيْنَا ٱلْقِتَالَ لَوْلَآ أَخَّرْتَنَآ إِلَىٰٓ أَجَلٍۢ قَرِيبٍۢ ۗ قُلْ مَتَٰعُ ٱلدُّنْيَا قَلِيلٌۭ وَٱلْءَاخِرَةُ خَيْرٌۭ لِّمَنِ ٱتَّقَىٰ وَلَا تُظْلَمُونَ فَتِيلًا ﴾

“ART THOU NOT aware of those who have been told, "Curb your hands, and be constant in prayer, and render the purifying dues"? But as soon as fighting [in God's cause] is ordained for them, lo, some of them stand in awe of men as one should stand in awe of God - or in even greater awe - and say, "O our Sustainer! Why hast Thou ordained fighting for us? If only Thou hadst granted us a delay for a little while!" Say: "Brief is the enjoyment of this world, whereas the life to come is the best for all who are conscious of God - since none of you shall be wronged by as much as a hair's breadth.”

Please check ayah 4:79 for complete tafsir.