According to Petersen, the small mosque/shrine located at a distance of some 50 meters from Maqam Imam ´Ali, on the opposite side of the road was known as Shaykh al-Katanan. Inspected in 1991, it was found to be built on a square plan with a shallow dome resting on an octagonal drum. The building is entered through a doorway in the middle of the north side. Inside there are windows on the west and east side flanked by niches. In the middle of the south wall is a shallow niche, which was found decorated with inscriptions painted in henna.