In volume S1 | book 1, The National Literature of the Arabs | Section 3, The Period of the Umayyads
That they invented words is claimed as early as Fakhr al-Dīn al-Rāzī’s Maḥṣūl (see p. 506, 6, II, 3), according to Suyūṭī, Muzhir2 I, 71, 20.
R. Geyer, Altarabische Dijamben, Leipzig–New York 1908, see Rhodokanakis, ZDMG LXII, 569 ff., Brockelmann, WZKM XXIII, 383 ff. Muḥammad Tawfīq al-Bakrī (who was Shaykh mashāyikh al-ṭuruq al-ṣūfiyya fi ’l-diyār al-Miṣriyya, alive in 1343/1926), Arājīz al-ʿArab, C. 1313.
1. Al-Aghlab b. ʿAmr b. ʿUbayda al-ʿIjlī.