Arabic (Original)
وَبِإِسْنَادِهِمَا عَنْ مَالِكٍ عَنْ نَافِعٍ عَنْ عَبْدِ اللهِ بْنِ عُمَرَ أَنَّهُ كَانَ يَقْرَأُ فِي الصُّبْحِ فِي السَّفَرِ بِعَشْرٍ السُّوَرِ الْأُوَلِ مِنَ الْمُفَصَّلِ فِي كُلِّ رَكْعَةٍ بِسُورَةٍ لَمْ يَذْكُرِ الشَّافِعِيُّ السُّوَرَ وَقَالَ بِالْعَشْرِ الْأُوَلِ أَنَّهُ كَانَ يَقْرَأُ فِي الصُّبْحِ فِي السَّفَرِ بِعَشْرٍ السُّوَرِ الْأُوَلِ مِنَ الْمُفَصَّلِ فِي كُلِّ رَكْعَةٍ بِسُورَةٍ لَمْ يَذْكُرِ الشَّافِعِيُّ السُّوَرَ وَقَالَ بِالْعَشْرِ الْأُوَلِ
English Translation
And through their chain of narration from Malik, from Nafi', from Abdullah ibn Umar, that he used to recite in the morning prayer during travel from the first ten surahs of the Mufassal, one surah in each rak'ah. Al-Shafi'i did not mention the specific surahs and said: "from the first ten."