The al-Rasub sword is one of the nine swords of the prophet Muhammad. It is said that the weapons of the house of the prophet Muhammad were kept among his family just like the Ark was kept with the Israelites.
The sword is preserved in the Topkapi museum, Istanbul. Its blade is 140 cm in length. It has gold circles on which are inscribed the name of Ja'far al-Sadiq. Photograph taken from Muhammad Hasan Muhammad al-Tihami, Suyuf al-Rasul wa 'uddah harbi-hi (Cairo: Hijr, 1312/1992).