Tomb of Shah Da'i Allah is located on the south side of Dar al-Salam Cemetery in Shiraz. Mahmoud, known as Nezamuddin and Shah Da'i Allah, was one of the renowned mystics and sages of Shiraz. He wrote 35 books in addition to being a good poet. Shah Da'i Allah passed away in 870 A.H. His tomb is comprised of two large and luxury red porphyry tombstones for his son and himself. A poem by him is written on the entrance of his tomb.