It was not [proper] for the people of Madinah and those surrounding (9:120)

﴿مَا كَانَ لِأَهْلِ الْمَدِينَةِ وَمَنْ حَوْلَهُم مِّنَ الْأَعْرَابِ أَن يَتَخَلَّفُوا عَن رَّسُولِ اللَّهِ وَلَا يَرْغَبُوا بِأَنفُسِهِمْ عَن نَّفْسِهِ ۚ ذَٰلِكَ بِأَنَّهُمْ لَا يُصِيبُهُمْ ظَمَأٌ وَلَا نَصَبٌ وَلَا مَخْمَصَةٌ فِي سَبِيلِ اللَّهِ وَلَا يَطَئُونَ مَوْطِئًا يَغِيظُ الْكُفَّارَ وَلَا يَنَالُونَ مِنْ عَدُوٍّ نَّيْلًا إِلَّا كُتِبَ لَهُم بِهِ عَمَلٌ صَالِحٌ ۚ إِنَّ اللَّهَ لَا يُضِيعُ أَجْرَ الْمُحْسِنِينَ﴾
[ التوبة: 120]

9:120 It was not [proper] for the people of Madinah and those surrounding them of the bedouins that they remain behind after [the departure of] the Messenger of Allah or that they prefer themselves over his self. That is because they are not afflicted by thirst or fatigue or hunger in the cause of Allah, nor do they tread on any ground that enrages the disbelievers, nor do they inflict upon an enemy any infliction but that is registered for them as a righteous deed. Indeed, Allah does not allow to be lost the reward of the doers of good.

It is not for the people of Medina, or those around them of the people who live in the desert, to stay behind the Messenger of Allah ( peace be upon him )if he himself goes out to fight, or to be stingy with themselves and give preference to their own safety over the safety of the Messenger ( peace and blessings be upon him ).
Rather, they should sacrifice themselves for him.
This is because they suffer no thirst, tiredness or hunger for the sake of Allah, and do not step anywhere in the land of those who deny the truth with their own feet or the hooves of their horses or camels, angering thereby those who oppose the truth, and do not make a gain over their enemy, killing or capturing them, making war gains or defeating them, except that Allah records for them the reward of a good action for them, which He accepts from them.
Allah does not allow the reward of those who do good to be lost.
Rather, He gives it to them in full, and increases the reward for them.

It was not becoming of the people of Al-Madinah and the bedouins of the neighbourhood to remain behind Allah's Messenger (Muhammad SAW when fighting in Allah'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 Allah, 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, Allah wastes not the reward of the Muhsinun

phonetic Transliteration

Ma kana liahli almadeenati waman hawlahum mina alaAArabi an yatakhallafoo AAan rasooli Allahi wala yarghaboo bianfusihim AAan nafsihi thalika biannahum la yuseebuhum thamaon wala nasabun wala makhmasatun fee sabeeli Allahi wala yataoona mawtian yagheethu alkuffara wala yanaloona min AAaduwwin naylan illa kutiba lahum bihi AAamalun salihun inna Allaha la yudeeAAu ajra almuhsineena

Abdullah Yusuf Ali - Translation

It was not fitting for the people of Medina and the Bedouin Arabs of the neighbourhood, to refuse to follow Allah's Messenger, nor to prefer their own lives to his: because nothing could they suffer or do, but was reckoned to their credit as a deed of righteousness,- whether they suffered thirst, or fatigue, or hunger, in the cause of Allah, or trod paths to raise the ire of the Unbelievers, or received any injury whatever from an enemy: for Allah suffereth not the reward to be lost of those who do good;-

Safi-ur-Rahman al-Mubarakpuri

It was neither befitting for the people of Al-Madinah and the bedouins of the neighborhood to remain behind Allah's Messenger nor to prefer their own lives to his life. That is because they suffer neither Zama' nor Nasab, nor Makhmasah in the cause of Allah, nor did 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, Allah wastes not the reward of the doers of good.

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