Believers! If you follow those who deny the Truth, they will drive you back on your heels, and you will turn about, losers. 149 God is your Guardian and the best Helper. 150 We shall cast terror into the hearts of those who disbelieve because they ascribe unto Allah partners, for which no warrant hath been revealed. Their habitation is the Fire, and hapless the abode of the wrong-doers. 151 AND, INDEED, God made good His promise unto you when, by His leave, you were about to destroy your foes - until the moment when you lost heart and acted contrary to the [Prophet's] command, and disobeyed after He had brought you within view of that [victory] for which you were longing. There were among you such as cared for this world [alone,] just as there were among you such as cared for the life to come: whereupon, in order that He might put you to a test, He prevented you from defeating your foes. But now He has effaced your sin: for God is limitless in His bounty unto the believers. 152 ۞ And recall what time ye were running off and would not look back on any one, albeit the apostle in your rear was calling unto you. Wherefore He caused sorrow to overtake you for sorrow, that ye might not grieve for that which ye might lose nor for that which might befall you. And Allah is Aware of that which ye work. 153 Then, after sorrow, He sent down upon you safety. Slumber overtook a party, while another party cared only for themselves, thinking of Allah thoughts that were not true, the guess of ignorance, saying: 'Have we any say in the affair' Say: 'The entire affair belongs to Allah' They conceal in themselves what they do not disclose to you. They say: 'If we had any say in the affair we should not have been killed here' Say: 'Had you stayed in your homes, those of you for whom slaying was written would have come out to their (death) beds so that Allah might try what was in your chests and that He will examine what is in your hearts' And Allah knows the innermost of the chests. 154 Indeed those of you who turned back on the day when the two armies met – for it was the devil who caused them to waver, because of some of their deeds; and undoubtedly Allah has forgiven them; indeed Allah is Oft Forgiving, Most Forbearing. 155