…of Ibn Qutayba entitled *Adab al-katib*—one of the four classical sources on belles-lettres—and called his own commentary “al-Iqtidad”. He arranged it in three parts: the first explains the preface and deals with the various classes of secretaries and their instruments; the second draws attention to passages in which the author or later copyists erred, as well as to usages he forbade although they are in fact permissible; the third expounds the verses cited in the work. This commentary was published in three volumes in 1981, edited by Mustafa al-Saqqa and Hamid Abd al-Majid. Among the works not listed by the biographer is his commentary on *Saqt al-zand*, now printed together with the other commentaries on that poem. Ibn Khallikan judged it superior to Abu al-Ala al-Maarrī’s own commentary, which the latter called “Dawʾ al-saqt”. Indeed, al-Batalyusi did not confine himself to *Saqt al-zand*; he also included a selection of other poems by al-Maarrī—some from *Luzum ma la yalzam*, others from his remaining diwans—and he alone among the commentators arranged *Saqt al-zand* alphabetically. His writings further include *al-Hullal fi islah al-khalal min Kitab al-Jumal* (printed, ed. Saʿid Abd al-Karim Saʿudi, 1980) and *al-Hullal fi sharh Abiyat al-Jumal* (still unpublished; manuscript copies are held in the Public Awqaf Library, Baghdad, and in Sayyid Muhammad al-Mishkat’s collection, Central Library, University of Tehran). (1) Ibn Khallikan, Ibn Bashkuwal, al-Qifti and Ibn al-Imad refer to the book as *al-Tanbih ʿala al-asbab al-mujiba l-ikhtilaf al-umma*. Al-Suyuti, in *Bughyat al-wuʿat* 2/56, calls it *Sabab ikhtilaf al-fuqahaʾ*. The author of *Azhar al-riyaḍ* 3/107 entitles it *al-Tanbih ʿala al-sabab al-mujib li-ikhtilaf al-ʿulamaʾ fi iʿtiqadatihim wa-araʾihim wa-saʾir aghradihim wa-anhaʾihim*. It was printed in Egypt in 1319 AH under the title *al-Insaf fi al-tanbih ʿala al-asbab allati awjabat al-ikhtilaf bayna al-muslimin fi araʾihim*. (2) Among his verses on knowledge: The man of knowledge lives on, immortal after death, though his limbs beneath the dust decay; The ignorant man is dead, though treading the earth, people deem him alive, yet he is naught. (3) In Valencia, where he finally settled, made his home, and composed the greater part of his finest works. (*) Sources: Mashyakhat Ibn ʿAsakir 54/1-2; al-Muntazam 10/16-19; Mashyakhat Ibn …