Whoever joins himself (to another) in a good cause shall have a share of it, and whoever joins himself (to another) in an evil cause shall have the responsibility of it, and Allah controls all things.

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;

And seek by means of what Allah has given you the future abode, and do not neglect your portion of this world, and do good (to others) as Allah has done good to you, and do not seek to make mischief in the land, surely Allah does not love the mischief-makers.