7. Hakim has related from Saad bin Abi Waqqas and Ibn Marduyah from Abdullah bin Abbas that the Prophet (peace be upon him) repeated the words of the Quran for fear lest he should forget them. Mujahid and Kalbi say that even before Gabriel finished recitation of the revelation the Prophet (peace be upon him) would start repeating the initial verses lest he should forget them. On this very basis Allah assured him that he should listen quietly when the revelation was coming down, for, We shall enable you to recite it; then you will remember it forever. You should have no fear that you will forget any word of it. This is the third occasion where the Prophet (peace be upon him) has been taught the method of receiving the revelation. The first two occasions have been referred to in(Surah TaHa, Ayat 114)and (Surah Al-Qiyamah, Ayats 16-19). This verse proves that just as the Quran was sent down to the Prophet (peace be upon him) as a miracle, so also its each word was preserved in his memory as a miracle and no possibility was allowed to remain that he should forget anything of it, or that he should utter another synonymous word for any word of it.