Wikipedia (Arabic), "Ibn Abdun al-Ishbili"

ويكيبيديا ⁦(العربية)⁩، «ابن عبدون الإشبيلي»

Arabic Wikipedia biography of Muhammad ibn Ahmad ibn Abdun al-Tujibi: a writer and jurist of Seville who lived in the second half of the 5th century AH (11th century CE), witnessed the end of al-Mu'tamid's reign and the Almoravid period, and wrote the Risala fi'l-qada' wa'l-hisba (Treatise on the Judiciary and Market Inspection), edited by Levi-Provencal in 1955. The article gives no exact birth or death dates.