Ubaydallah ibn Khurdadhbih

Boon-companion of al-Mu'tamid, and the author of books on the routes and kingdoms, and on play and entertainments ².

al-Mas'udi reports that he entered upon al-Mu'tamid, who asked him who was the first to take up the lute ('ud). He told him the report of Lamak and his son, whom he hung on a tree, until he made a lute of wood in his likeness ².