‘Amir b. Rabi'a said that they prayed the morning prayer behind ‘Umar b. al-Khattab and that he recited slowly in both rak'as Sura Yusuf and Sura al-Hajj (Al-Qur’an; 22). When someone remarked that he must have begun the prayer at break of day he replied that that was so.
Al-Farafisa b. 'Umair al-Hanafi said that he learned Sura Yusuf (Al-Qur’an; 12) simply from the recitation of it by ‘Uthman b. ‘Affan in the morning prayer, owing to the great number of times he repeated it.
‘Amr b. Shu'aib on his father’s authority quoted his grandfather as saying, “There is no short or long sura in al-Mufassal* which I have not heard God’s Messenger reciting when he led the people in the prescribed prayer.”
* A name applied to the latter part of the Qur’an because there are many divisions, but opinions differ about where it begins. Lane mentions the different views in his Lexicon, pp 2407 f., saying the most correct opinion is that it begins with sura 49.