Believers, if you obey those who disbelieve they will turn you upon your heels and you will turn to be losers. 149 Nay, but God alone is your Lord Supreme, and His is the best succour. 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 Allah verily made good His promise unto you when ye routed them by His leave, until (the moment) when your courage failed you, and ye disagreed about the order and ye disobeyed, after He had shown you that for which ye long. Some of you desired the world, and some of you desired the Hereafter. Therefore He made you flee from them, that He might try you. Yet now He hath forgiven you. Allah is a Lord of Kindness to believers. 152 ۞ Remember, as you were rushing up (the hill) without turning back to look, though the Prophet was calling you from the rear, He requited you with anguish for an anguish that you do not fret for missed opportunity and what befell you, for God is aware of all that you do, 153 Then He sent down upon you, after grief, security -- a slumber overcoming a party of you; and a party themselves had grieved, thinking of God thoughts that were not true such as the pagans thought, saying, 'Have we any part whatever in the affair?' Say: 'The affair belongs to God entirely.' They were concealing in their hearts that they show not to thee, saying, 'Ah, if we had had a part in the affair, never would we have been slain here.' Say: 'Even if you had been in your houses, those for whom slaying was appointed would have sallied forth unto their last couches'; and that God might try what was in your breasts, and that He might prove what was in your hearts; and God knows the thoughts in the breasts. 154 Behold, as for those of you who turned away [from their duty] on the day when the two hosts met in battle - Satan caused them to stumble only by means of something that they [themselves] had done. But now God has effaced this sin of theirs: verily, God is much-forgiving, forbearing. 155