Complex sentence: Eminent Sufis such as Ali Hujwiri claim that the tradition first began with Ali ibn Abi Talib furthermore Junayd of Baghdad regarded Ali as the Sheikh of the principals and practices of Sufism.
Split into simpler sentences: Eminent Sufis such as Ali Hujwiri claim that the tradition first began with Ali ibn Abi Talib. Furthermore, Junayd of Baghdad regarded Ali as the Sheikh of the principals and practices of Sufism.