Gedimu (Chinese: 格迪目; pinyin: Gédímù) or Qadim (Arabic: قديم‎‎) is the earliest school of Islam in China. It is a Hanafi, non-Sufi school of the Sunni tradition. Its supporters are centered on local mosques, which function as relatively independent units. It is numerically the largest Hui school of thought in China. In the religious ideas of this school the basic Islamic principles of Tawheed are maintained. In religious practice, this requires of the faithful a strict observance of the principle of Rukun, the five basic duties of Islam.