O you who believe! be careful of (your duty to) Allah and be with the true ones. 119 It was not for the people of Madina and those around them of the desert dwellers that they should lay behind the apostle of Allah, nor that they should prefer themselves before him. That is because there afflicteth them not thirst or fatigue or hunger in the way of Allah or they tread a place trodden on enraging the infidels, nor they attain an attainment from the enemy, but a good deed is thereby written down unto them. Verily Allah wasteth not the hire of the well-doers. 120 And they expend not an expending, small or great, or transverse a vale, but it is written down unto them, so that Allah may recompense them with the best for that which they have been working. 121 ۞ And the believers should not all go out to fight. Of every troop of them, a party only should go forth, that they (who are left behind) may gain sound knowledge in religion, and that they may warn their folk when they return to them, so that they may beware. 122