Ahmad ibn Hamdun ibn al-Hajj explained

Ahmad ibn Hamdun ibn al Hajj or Abu-l-Abbas Ahmad ibn Mohammed ibn Hamdun Ibn al-Hajj (died 1898) was a Moroccan physician and scholar^[1] who composed a history of the Alaouite dynasty in 15 volumes by order of Moulay Hasan I.^[2] He also wrote a treatise titled "Addourat ettibbya" (pearls of medicine), in which he gave, for the first time in the history of Morocco, a technical overview of medical treatments.^[3]

References

1. [Évariste Lévi-Provençal]
2. Ahmad Ibn al-Hajj, Ad-Dur al-Muntakhab al-Mustahsan fi Ba'd Ma'athir Amir al-Mu'minin Mawlana al-Hasan, Rabat, Bibliothèque Royale
3. H.P.J. Renaud, "Discours au Vème congrès de l'histoire de médecine", Genève, 1926, p. 8, see also, by the same author "État de nos connaissances sur la médecine Ancienne au Maroc", in Bulletin de L'Institut des Hautes Etudes Marocaines, 1920