Allah has certainly heard the saying of those who said: Surely Allah is poor and we are rich. I will record what they say, and their killing the prophets unjustly, and I will say: Taste the chastisement of burning.

Say to those of the dwellers of the desert who were left behind: You shall soon be invited (to fight) against a people possessing mighty prowess; you will fight against them until they submit; then if you obey, Allah will grant you a good reward; and if you turn back as you turned back before, He will punish you with a painful punishment.