Complex sentence: From an early age he led an ascetic life with frequent fasting and study of the Qur'an and Hadith, the oral traditions, of the Prophet Muhammed and, above all, constant remembrance of God.
Split into simpler sentences: From an early age he led an ascetic life with frequent fasting and study of the Qur'an and Hadith, the oral traditions, of the Prophet Muhammed. He practised repentence and, above all, constant remembrance of God.