818Abu DawoodSahih (Al-Albani)حَدَّثَنَا أَبُو الْوَلِيدِ الطَّيَالِسِيُّ، حَدَّثَنَا هَمَّامٌ، عَنْ قَتَادَةَ، عَنْ أَبِي نَضْرَةَ، عَنْ أَبِي سَعِيدٍ، قَالَ أُمِرْنَا أَنْ نَقْرَأَ، بِفَاتِحَةِ الْكِتَابِ وَمَا تَيَسَّرَ .Abu sa'id said:we were commanded to recite Fatihat al-kitab and whatever was convenient (from the Qur'an during the prayer).Reference: Sunan Abi Dawud 818 In-book : Book 2, Hadith 428 English translation : Book 2, Hadith 817