This sword is known as "Qal'i" or "Qul'ay." The name may be related to a place in Syria or a place in India near China. Other scholars state that the adjective "qal'i" refers to "tin" or "white lead" which was mined in different locations. This sword is one of the three swords which the prophet Muhammad acquired as booty from the Banu Qaynaqa. It is also reported that the grandfather of the prophet Muhammad discovered "swords of Qal'i" when he uncovered the Well of Zamzam in Mecca.
Today the sword is preserved in the Topkapi Museum, Istanbul. Its blade is 100 cm in length. Inscribed in Arabic on its blade above the handle is: "This is the noble sword of the house of Muhammad the prophet, the apostle of God." The blade of this sword is distinguished from the other swords because of its wave-like design. Photograph taken from Muhammad Hasan Muhammad al-Tihami, Suyuf al-Rasul wa 'uddah harbi-hi (Cairo: Hijr, 1312/1992).