Jabal Sais (Arabic: جبل سايس also known as Qasr Says is a Umayyad desert fortification or former palace in Syria which was built 707-715 AD.

[1] Jabal Says is mountain peak next to the fortification which sits 621 meters above sea level.

[3] The location was dependent on the seasonal supply of water which pooled next to the volcano crater.

[5] According to the historian Jere L. Bacharach, al-Walid I built Jabal Says, likely as a Bedouin summer encampment between his base of operations in al-Qaryatayn and another of his desert forts, Qasr Burqu'.

[7][8] Qasr al-Mushash This article about a building or structure in Syria is a stub.