Shah Cheragh is a funerary monument and mosque in Shiraz, Iran, housing the tomb of the brothers Ahmad and Muhammad, sons of Musa al-Kohima and brothers of Ali ar-Ridha. The two took refuge in the city during the Abbasid persecution of Shia Muslims. The tombs became celebrated pilgrimage centers in the 14th century when Queen Tashi Khatun erected a mosque and theological school in the vicinity.