Narrated Abdullah ibn Amr (RA) : A man came to the Messenger of Allah ﷺ and said: Teach me to read the Quran, Messenger of Allah. He said: Read three surahs which begin with A. L. R. He said: My age is advanced, my mind has become dull (i. e. memory has grown weak), and my tongue has grown heavy). So he said: Then read three surahs which begin with H. M. He repeated the same words. So he said: Read three surahs which begin with the Glorification of Allah. But he repeated the same excuse. The man then said: Teach me a comprehensive surah, Messenger of Allah. The Prophet ﷺ taught him Surah (99). When the Earth is shaken with her earthquake. When he finished it, the man said: By Him Who sent you with truth, I shall never add anything to it. Then man then went away. The Prophet ﷺ said twice: The man received salvation.