This chapter is written by Yaḥyā Muḥammad Ibrāhīm and R.S. O’Fahey

We have grouped here the Sufī traditions that derive from Aḥmad b. Idrīs, his son, ʿAbd al-ʿĀl, and his Sudanese student, Ibrāhīm al-Rashīd. This tradition includes the Idrīsiyya (variously called, Aḥmadiyya Idrīsiyya or Aḥmadiyya), Rashīdiyya, Ṣāliḥiyya and Dandarāwiyya ṭarīqas that were to spread to Egypt, Ottoman Turkey, the former Yugoslavia and Albania, Syria, Somalia, East Africa and southeast Asia, and the most recently established Idrīsī ṭarīqa, the Jaʿfariyya in Egypt. As elsewhere in this book,…