Muwatta Malik
Book 3, Hadith 38
Arabic hadith text
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ نَافِعٍ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، كَانَ يَقْرَأُ فِي الصُّبْحِ فِي السَّفَرِ بِالْعَشْرِ السُّوَرِ الأُوَلِ مِنَ الْمُفَصَّلِ فِي كُلِّ رَكْعَةٍ بِأُمِّ الْقُرْآنِ وَسُورَةٍ .
Translation
Yahya related to me from Malik from Nafi that Abdullah ibn Umarused 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 everyraka.