Yahya related to me from Malik from Hisham ibn Urwa that hisfather heard Abdullah ibn Amir ibn Rabia say, "We prayed subh behindUmar ibn al-Khattab and he recited suraYusuf (Sura 12) and surat al-Hajj (Sura 22) slowly." I (Hisham's father) said, "By Allah, then itmust have been his habit to get up at the crack of dawn." He said, "Ofcourse."
App reference: Book 3, Hadith 36
USC-MSA web (English) reference: Book 3, Hadith 36
Arabic reference: Book 3, Hadith 183