 It is claimed by some scholars that the intrusion of Sufism into China caused massive tensions in the Hui community which led to the Dungan revolt.Sufi groups engaged in violent disputes with each other, and with the "old teaching" (lao jiao), non Sufi Gedimu Sunni Muslims who had been in China for centuries.Violence was brought on by the introduction of the Jahriya by Ma Mingxin in 1761.