Shah Cheragh is a funerary monument and mosque in Shiraz, Iran, housing the tomb of the brothers Ahmad and Muhammad, sons of Musa al-Kadhim and brothers of Ali ar-Ridha. The two took refuge in the city during the Abbasid persecution of Shia Muslims. The name Shah Cheragh translates to 'King of the Light' in Persian, referring to the luminous gravestones within the shrine. The site became a pilgrimage destination in the 14th century when Queen Tashi Khatun erected a mosque and theological school in the vicinity. The shrine was damaged over the years and underwent various restorations. It is renowned for its intricate tile work and dazzling mirror work, which adorn the interior of the shrine, creating an awe-inspiring atmosphere for visitors. The courtyard's pool and the vast dome also contribute to its impressive aesthetics. Despite its religious significance, Shah Cheragh attracts numerous tourists who are welcomed unless they visit during prayer times.