O you who believe! Allah will certainly try you in respect of some game which your hands and your lances can reach, that Allah might know who fears Him in secret; but whoever exceeds the limit after this, he shall have a painful punishment.

It did not beseem the people of Medina and those round about them of the dwellers of the desert to remain behind the Messenger of Allah, nor should they desire (anything) for themselves in preference to him; this is because there afflicts them not thirst or fatigue or hunger in Allah's way, nor do they tread a path which enrages the unbelievers, nor do they attain from the enemy what they attain, but a good work is written down to them on account of it; surely Allah does not waste the reward of the doers of good;