Mistakes During Battle and Their Consequences

O you who have believed, if you obey those who disbelieve, they will turn you back on your heels, and you will [then] become losers. 149 But Allāh is your protector, and He is the best of helpers. 150 We will cast terror into the hearts of those who disbelieve for what they have associated with Allāh of which He had not sent down [any] authority. And their refuge will be the Fire, and wretched is the residence of the wrongdoers. 151 And Allāh had certainly fulfilled His promise to you when you were killing them [i.e., the enemy] by His permission until [the time] when you lost courage and fell to disputing about the order [given by the Prophet (ﷺ)] and disobeyed after He had shown you that which you love. Among you are some who desire this world, and among you are some who desire the Hereafter. Then He turned you back from them [defeated] that He might test you. And He has already forgiven you, and Allāh is the possessor of bounty for the believers. 152 [Remember] when you [fled and] climbed [the mountain] without looking aside at anyone while the Messenger was calling you from behind. So Allāh repaid you with distress upon distress so you would not grieve for that which had escaped you [of victory and spoils of war] or [for] that which had befallen you [of injury and death]. And Allāh is [fully] Aware of what you do. 153 Then after distress, He sent down upon you security [in the form of] drowsiness, overcoming a faction of you, while another faction worried about themselves, thinking of Allāh other than the truth - the thought of ignorance, saying, "Is there anything for us [to have done] in this matter?" Say, "Indeed, the matter belongs completely to Allāh." They conceal within themselves what they will not reveal to you. They say, "If there was anything we could have done in the matter, we [i.e., some of us] would not have been killed right here." Say, "Even if you had been inside your houses, those decreed to be killed would have come out to their death beds." [It was] so that Allāh might test what is in your breasts and purify what is in your hearts. And Allāh is Knowing of that within the breasts. 154 Indeed, those of you who turned back on the day the two armies met [at Uḥud] - it was Satan who caused them to slip because of some [blame] they had earned. But Allāh has already forgiven them. Indeed, Allāh is Forgiving and Forbearing. 155