Zahr al-Bustan fi Dawlat Bani Ziyan

Zahr al-Bustan fi Dawlat Bani Ziyan (Arabic: زهر البستان في دولة بني زيان, lit. 'Flower of the Garden Concerning the Kingdom of the Sons of Ziyan'), is an Arabic historical book by an unknown author, dating to the 14th century (the 7th century of the Hijra), which documents the Kingdom of Tlemcen in the Maghreb and its relations with its neighbors, particularly during the reign of the Zayyanid Sultan Abu Hammu II. The book consists of three volumes (parts), but only the second part is available, while the first and third parts are considered lost as of today. The only surviving manuscript copy of the second volume of this book, which dates to 1819 (1235 AH), is held at the John Rylands Library in Manchester, England.

Source: Wikipedia — Zahr al-Bustan fi Dawlat Bani Ziyan (CC BY-SA 4.0)