Believers! If you follow those who deny the Truth, they will drive you back on your heels, and you will turn about, losers. 149 In fact, Allah is your Master; and He is the Best Supporter. 150 We shall cast terror into the hearts of those who disbelieve, because they joined others in worship with Allah, for which He had sent no authority; their abode will be the Fire and how evil is the abode of the Zalimun (polytheists and wrong-doers). 151 And Allah had assuredly made good His promise unto you when ye were extirpating them by His leave, until when ye flagged and ye disagreed about the command and ye disobeyed after He had shewn you that for which ye longed. Of you some desired the world and of you some desired the Hereafter, wherefore He turned you away from them that he might prove you; and of a surety He hath pardoned you. And Allah is Gracious unto the believers. 152 ۞ When you ran off precipitately and did not wait for any one, and the Apostle was calling you from your rear, so He gave you another sorrow instead of (your) sorrow, so that you might not grieve at what had escaped you, nor (at) what befell you; and Allah is 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 Allah 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 Allah." They conceal within themselves what they will not reveal to you. They say, "If there was anything we could have done in the matter, 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 Allah might test what is in your breasts and purify what is in your hearts. And Allah is Knowing of that within the breasts. 154 Those of you who turned away the day the two hosts encountered -- Satan made them slip for somewhat they had earned; but God has pardoned them; God is All-forgiving, All-clement. 155