Maliks Muwatta Book 003, Hadith Number 038.

Section : The Recitation in the Subh Prayer.

Yahya related to me from Malik from Nafi that Abdullah ibn Umar used to recite the first ten suras of the mufassal in the subh prayer, and on a journey he would recite the ummal-Qur'an and a sura in every raka.