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Except what Allahu ta’ālā may will, that you forget, by abrogating its recitation and its ruling - the Prophet "sallallahu 'alayhi wa sallam" used to recite aloud while Gabriel recited, fearing to forget, and so it is as though it was said to him, 'Do not hasten in it; you will not forget and so do not weary yourself by reciting it aloud'; assuredly He, exalted be He, knows what is overt, of words and deeds, and what is hidden, of both of these.