The "pishtaq" or Porch is of exceptional workmanship. Two different decorative approaches can be seen in the façade of the building. The dado, with its series of geometric designs picked out in glazed and unglazed terra-cotta, recalls an early Seljuk form, while the frame with its ornamental series of cartouches made up of alternate crosses and rectangles against a floral background and which has been
executed in mosaic faience is more reminiscent of the Qara Quiunlu period in which work started.
It is presumed that the original entrance to the shrine was through the doorway on the left which leads into a long hallway off which the two shrines are to be found.
The interior of the semidome is spectacular; in the centre there is a lattice window with a sufi poem written around it, and the side walls are ornamented with fine decagonal decorative panels. On either side of the grille there are beautiful floral panels. The inscription above the honeycomb panel recalls the patron of the original shrine, Jalal al-Din Safarshah who recognised the authority of the Qara-Quiunlu ruler of Western Iran at that time, Jahan Shah, and his son Muhammedi, who had been appointed as governor of Isfahan.
"During the time that the ruler of the greatest kingdom, and the governor of the largest dominion, the padishah, the Refuge of the world, Abu'l-Muzaffar Amirzadeh Jahan Shah, may God preserve his reign, had entrusted the rule of this province to the charge and direction of the Prince of the World, the Support of the Pillars of the Muslim Religion, Abu'l-Fath Muhammedi, may God preserve his Sultanate, the most noble Amir-e-A'zam, the source of strength and protection, Jalal al-Din Safarshah, may God increase his reign, carried out the construction of this lofty buq'ah and precious building, seeking the pleasure of God in 857 (1453)"Trans. J. Clinton in "The Timurid Architecture of Iran and Turan", Lisa Golombek & Donald Wilber, 1988, Princeton University Press.
In front of the entrance there is a Bakhtiari Lion. These were traditionally used to mark the graves of great men.