Robe of honour

A robe of honour (, plural , or , pl. or ) was a term designating rich garments given by medieval and early modern Islamic rulers to subjects as tokens of honour, often as part of a ceremony of appointment to a public post, or as a token of confirmation or acceptance of vassalage of a subordinate ruler. They were usually produced in government factories and decorated with the inscribed bands known as "ṭirāz".
History.
The bestowment of garments as a mark of favour is an ancient Middle Eastern tradition, recorded in sources such as the Old Testament and Herodotus.
In the Islamic world, Muhammad himself set a precedent when he removed his cloak () and gave it to Ka'b bin Zuhayr in recognition of a poem praising him. Indeed, the term "denotes the action of removing one's garment in order to give it to someone".
The practice of awarding robes of honour appears in the Abbasid Caliphate, where it became such a regular feature of government that ceremonies of bestowal occurred almost every day, and the members of the caliph's court became known as "those who wear the " (). The bestowal of garments became a fixed part of any investment into office, from that of a governor to the heir-apparent to the throne. As important court occasions, these events were often commemorated by poets and recorded by historians. 
In Fatimid Egypt, the practice spread to the wealthy upper middle classes, who began conferring robes of honour on friends and relatives, in emulation of the aristocracy. Under the Mamluk Sultanate of Egypt, the system was standardized into a system of classes reflecting the divisions of Mamluk society, each with its own ranks: the military (), the civilian bureaucracy (), and the religious scholars (). The distribution of the robes of honour was the responsibility of the Keeper of the Privy Purse (), who supervised the Great Treasury (), where the garments were stored. Maqrizi provides a detailed description of the garments worn by the various classes and ranks; in addition, Mamluk practice included the bestowal of arms, or even a fully outfitted horse from the Sultan's own stables, as a . The practice remained very common until the early 20th century; in 19th-century India, the bestowal gift or (, , or ) might comprise from five up to 101 articles of clothing.
As the practice spread in the Islamic world, and robes began to be given for every conceivable occasion, they also acquired distinct names. Thus for example the ("robe of the vizierate") would be given on the appointment to the vizierate, while the ("robe of dismissal") upon an—honourable—dismissal, the might be given to an arriving guest, while the would to a departing guest, etc. 
Sums of money or other valuables were also given as part of the bestowal ceremony, or, in some cases, in lieu of the robe. In the Ottoman Empire, such a sum was known as ("price of "); most commonly this referred to the donative received by the Janissaries on the accession of a new sultan.