3:122
When inclined two parties among you that they lost heart, but Allah (was) their protector. And on Allah let put (their) trust the believers.

8:46
And obey Allah and His Messenger, and (do) not dispute lest you lose courage and (would) depart your strength, and be patient. Indeed, Allah (is) with the patient ones.

3:152
And certainly fulfilled to you Allah His promise, when you were killing them by His permission, until when you lost courage and you fell into dispute concerning the order and you disobeyed from after [what] He (had) shown you what you love. Among you (are some) who desire the world and among you (are some) who desire the Hereafter. Then He diverted you from them so that He may test you. And surely He forgave you. And Allah (is the) Possessor (of) Bounty for the believers.

8:43
When showed them to you Allah in your dream (as) few, and if He had shown them to you (as) many surely you would have lost cou and surely you would have disp in the matter, but Allah saved (you). Indeed, He (is) All-Knower of what is in the breasts.