The site is the most important place of pilgrimage within the city of Shiraz.
Shāh Chérāgh is a funerary monument and mosque in Shiraz, Iran, housing the tomb of the brothers Ahmad and Muhammad, sons of Mūsā al-Kādhim and brothers of ‘Alī ar-Ridhā. The two took refuge in the city during the Abbasid persecution of Shia Muslims.
The brothers' tombs, originally only simple mausoleums, became celebrated pilgrimage destinations in the 14th century when the pious and art-loving Queen Tashi Khatun erected a mosque and theological school by the tombs. Known locally as Shah Cherag or the 'King of Light', the exquisite tomb of Amir Ahmad is a place of truly stunning beauty. The enormous dome above the shrine is inlaid with hundreds of thousands of pieces of finely crafted tile and the interior walls are likewise covered with myriad pieces of dazzling cut glass intermixed with multi-colored tiles. In the same complex is the mausoleum of Mir Muhammad.
The site is the most important place of pilgrimage within the city of Shiraz.
Shah-e-Cheragh is Persian for "King of the Light". The site was given this name due to the nature of the discovery of the site by Ayatullah Dastghā'ib (the great grandfather of the contemporary Ayatullah Dastghā'ib). He used to see light from a distance and decided to investigate the source. He found that the light was being emitted by a grave within a graveyard. The grave that emitted the light was excavated, and a body wearing an armor was discovered. The body was wearing a ring saying al-‘Izzatu Lillāh, Ahmad bin Mūsā, meaning "The Pride belongs to God, Ahmad son of Musa". Thus it became known that this was the burial site of the sons of Mūsā al-Kādhim.
The decorative work in a mosaic of mirror glass, the inscriptions in stucco, the ornamentation, the doors covered with panels of silver, the portico, and the wide courtyard are most attractive. The tomb, with its latticed railing, is in an alcove between the space beneath the dome and the mosque. And this custom of placing the tomb in this position, so that it is not directly under the dome, is to be seen in other famous places of pilgrimage in the city of Shiraz, and may be considered a special feature of Shiraz shrines. Two short minarets, situated at each end of the columned portico, add impressiveness to the Mausoleum, and to the spacious courtyard, which surrounds it on three sides.