Rewards of Jihad
Allah says;
ما كان ﻻهل المدينة ومن حولهم من اﻻعراب أن يتخلفوا عن رسول الله وﻻ يرغبوا بٲنفسهم عن نفسه ذلك بٲنهم ﻻ يصيبهم ظمٲ وﻻ نصب وﻻ مخمصة في سبيل الله
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,
Allah, the Exalted and Most Honored, criticizes the people of Al-Madinah and the Bedouins around it, who did not participate in the battle of Tabuk with the Messenger of Allah. They sought to preserve themselves rather than comfort the Messenger during the hardship that he suffered in that battle. They incurred a loss in their share of the reward, since,
ﻻ يصيبهم ظمٲ
they suffer neither Zama, (thirst),
وﻻ نصب
nor Nasab, (fatigue),
وﻻ مخمصة
nor Makhmasah, (hunger),
في سبيل الله
in the cause of Allah,
وﻻ يطوون موطيا يغيظ الكفار
nor they take any step to raise the anger of disbelievers,
by strategies of war that would terrify their enemy,
وﻻ ينالون
من عدو نيﻼ
nor inflict any injury upon an enemy,
a defeat on the enemy,
إﻻ كتب لهم
but is written to their credit,
as compensation for these steps that are not under their control, but a consequence of performing good deeds that earn them tremendous rewards,
به عمل صالح
...as a deed of righteousness.
إن الله ﻻ يضيع أجر المحسنين
Surely, Allah wastes not the reward of the doers of good.
Allah said in a similar Ayah,
إنا ﻻ نضيع أجر من أحسن عمﻼ
Certainly We shall not make the reward of anyone who does his (righteous) deeds in the most perfect manner to be lost. (18:30)