ارجوزة في دليل الرعد على شهور العجم

The astrologer ʿAlī Ibn Abī al-Riǧāl, lived in Kairouan where he died in 1037. He worked in the court of the Zirid prince, al-Muʿizz ibn Bādīs. ʿAlī Ibn Abī al-Riǧāl, gathered around him a number of poets, including Ibn Sharaf and Ibn Rashiq. He wrote several books especially in Astrology and also in other specialties, the most famous of which being Kitāb al-bari' fi ahkam al-nuǧūm [The Outstanding Book of the Science of the Stars] translated into Castilian by Yehuda Ben Moshe.