Imam Darimi : 3341
حَدَّثَنَا إِسْحَقُ بْنُ عِيسَى عَنْ صَالِحٍ الْمُرِّيِّ عَنْ قَتَادَةَ عَنْ زُرَارَةَ بْنِ أَوْفَى أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ سُئِلَ أَيُّ الْعَمَلِ أَفْضَلُ قَالَ الْحَالُّ الْمُرْتَحِلُ قِيلَ وَمَا الْحَالُّ الْمُرْتَحِلُ قَالَ صَاحِبُ الْقُرْآنِ يَضْرِبُ مِنْ أَوَّلِ الْقُرْآنِ إِلَى آخِرِهِ وَمِنْ آخِرِهِ إِلَى أَوَّلِهِ كُلَّمَا حَلَّ ارْتَحَلَ
Narrated to us [Ishaq bin Isa] from [Salih Al Murri] from [Qatadah] from [Zurarah bin Aufa] that the Prophet Peace be upon him was once asked; What is the most important practice? He answered: "Al Haallu Al Murtahil." Asked; What does Al Haallu Al Murtahil mean? He answered: "The reader of the Qur'an who reads (recites) from the beginning of the Qur'an to the end and from the end of the Qur'an to the beginning, every time he finishes (reciting) he immediately leaves.