Abu Abdallah ibn Askar explained

Ibn Askar or Abu Abdallah Mohammed ibn Ali ibn Omar ibn Husain ibn Misbah ibn Askar (1529–1579) was a Moroccan historian, author of Dawhat al-Nashir li-Mahasin man kana min al-Maghrib min Ahl al-Karn al-ashir, a hagiographic dictionary, composed about the year 1575^{[1] [2]} which gives a comprehensive picture of the Jazulliya order and its offshoots.^[3] Ibn Askar died in the battle of Ksar al-Kebir. (He is not to be confused with the Andalusian Ibn Askar (d. 1238), author of Alam Malaqa.)

References

1. ed. M. Hajji, Rabat, 1976., translation T.H. Weir, (Edinburgh: George A. Morton 1904), The Sheikhs of Morocco
2. M. A. Cook, Commanding right and forbidding wrong in Islamic thought, Cambridge University Press, 2000, p. 388
3. Martijn Theodoor Houtsma, E.J. Brill's first encyclopaedia of Islam, 1913-1936, Volume 2, p. 363