Bektashi leadership uses the title baba rather than sheikh for its senior teachers, reflects marked Shia and folk influence, and was historically bound to the Ottoman Janissary corps until both were suppressed in 1826.
Source The Sufi Orders in IslamJ. Spencer Trimingham
Chishti sheikhs ran open khanqahs welcoming all faiths, prized sama over silent forms, and passed leadership to the most spiritually qualified disciple rather than by heredity, unlike several other tariqas.
Source Sufi Martyrs of Love: The Chishti Order in South Asia and BeyondCarl W. Ernst and Bruce B. Lawrence
Source The Sufi Orders in IslamJ. Spencer Trimingham
A Mevlevi sheikh trains a dervish through the sema, the turning ceremony; overall headship of the order was hereditary, held by the Celebi, descendants of Rumi based at the central lodge in Konya.
Source Rumi: Past and Present, East and WestFranklin D. Lewis
Muridiyya founder Ahmadu Bamba made the disciple's total submission to the sheikh, expressed through disciplined labor (khidma), the doctrinal center of the order rather than one practice among others.
Source Fighting the Greater Jihad: Amadu Bamba and the Founding of the Muridiyya of Senegal, 1853-1913Cheikh Anta Babou
The Naqshbandi sheikh guides chiefly through silent dhikr (khafi) and rabita, the disciple's inward attachment to the master's image, and the order holds unusually close to Sharia observance among the major tariqas.
Source The Sufi Orders in IslamJ. Spencer Trimingham
Leadership of the Qadiriyya, the oldest formally organized tariqa, has frequently passed hereditarily among descendants of founder Abd al-Qadir al-Jilani, custodians of his shrine in Baghdad.
Source The Sufi Orders in IslamJ. Spencer Trimingham
A Rifa'i sheikh personally oversees and authorizes the order's public demonstrations of ecstatic states, including handling fire, offered as evidence of the practitioner's spiritual attainment.
Source The Sufi Orders in IslamJ. Spencer Trimingham
The murshid, or pir, is the spiritual guide who initiates and directs disciples within a Sufi order.
Source Sufism: A Global HistoryNile Green
Tijani sheikh authority is unusually centralized: a member may not also belong to another order, and deputized teachers are called muqaddams rather than khalifas.
Source The Tijaniyya: A Sufi Order in the Modern WorldJamil M. Abun-Nasr