9:5When the Sacred Months have passed, kill the polytheists wherever you find them. And capture them, and besiege them, and lie in wait for them at every ambush. But if they repent, and perform the prayers, and pay the alms, then let them go their way. God is Most Forgiving, Most Merciful.

9:118Also towards the three who were left behind. Then, when the earth, as vast as it is, closed in on them, and their very souls closed in on them, and they realized that there was no refuge from God, except in Him, He redeemed them, so that they may repent. God is the Redeemer, the Merciful.

9:122It is not advisable for the believers to march out altogether. Of every division that marches out, let a group remain behind, to gain understanding of the religion, and to notify their people when they have returned to them, that they may beware.

9:126Do they not see that they are tested once or twice every year? Yet they do not repent, and they do not learn.