Continuing the discussion of mentioning brief biographies of prominent sufis of the past, discussed here is the founder of the Rifa'i Order, Ahmad ibn Ali al-Rifa'i. The Rifa'iyyah, an eminent sufi order that had a great following until the 15th century. Ahmad ibn Ali, known as the Great Ascetic has a number of miracles associated with him and several mystical incidents as mentioned in this lecture.