مَا كَانَ لِأَهْلِ ٱلْمَدِينَةِ وَمَنْ حَوْلَهُم مِّنَ ٱلْأَعْرَابِ أَن يَتَخَلَّفُوا۟ عَن رَّسُولِ ٱللَّهِ وَلَا يَرْغَبُوا۟ بِأَنفُسِهِمْ عَن نَّفْسِهِۦ ۚ ذَٰلِكَ بِأَنَّهُمْ لَا يُصِيبُهُمْ ظَمَأٌ وَلَا نَصَبٌ وَلَا مَخْمَصَةٌ فِى سَبِيلِ ٱللَّهِ وَلَا يَطَـُٔونَ مَوْطِئًا يَغِيظُ ٱلْكُفَّارَ وَلَا يَنَالُونَ مِنْ عَدُوٍّ نَّيْلًا إِلَّا كُتِبَ لَهُم بِهِۦ عَمَلٌ صَـٰلِحٌ ۚ إِنَّ ٱللَّهَ لَا يُضِيعُ أَجْرَ ٱلْمُحْسِنِينَ ١٢٠
It was not [proper] for the people of Madīnah and those surrounding them of the bedouins that they remain behind after [the departure of] the Messenger of Allāh or that they prefer themselves over his self.[507] That is because they are not afflicted by thirst or fatigue or hunger in the cause of Allāh, nor do they tread on any ground that enrages the disbelievers, nor do they inflict upon an enemy any infliction but that it is registered for them as a righteous deed. Indeed, Allāh does not allow to be lost the reward of the doers of good.
Translator's notes
[507] In times of hardship. Rather, they should have been willing to endure with the Prophet (ﷺ) whatever was necessary for Islām.
Saheeh International · QuranEnc v1.1.2
Another translation: Al-Hilali & Muhsin Khan · QuranEnc v1.1.2
120. It was not becoming of the people of Al-Madinah and the bedouins of the neighbourhood to remain behind Allâh’s Messenger (Muhammad صلى الله عليه وسلم when fighting in Allâh’s Cause) and (it was not becoming of them) to prefer their own lives to his life. That is because they suffer neither thirst nor fatigue, nor hunger in the Cause of Allâh, nor they take any step to raise the anger of disbelievers nor inflict any injury upon an enemy but is written to their credit as a deed of righteousness. Surely, Allâh wastes not the reward of the Muhsinûn [26]
[26] (V.9:120) Muhsinûn: Doers of good, i.e. those who perform good deeds totally for Allâh’s sake only without any show-off or to gain praise or fame, etc., and they do them in accordance with the Sunnah (legal ways) of Allâh’s Messenger, Muhammad صلى الله عليه وسلم.