A hlwardt describes in his Berlin catalogue a Ṣūfī tract entitledby him kitāb al-asfār, which he attributes to the wellknown Quṭb al-Dīn al-Jīlī (d. 832/1428). Vollers, who found a second copy of the same work at Leipzig, but there entitled (as it proves, more correctly) al-isfār 'an natā'ij al-asfār, follows Ahlwardt's lead in naming al-Jīlī as the author. These facts have naturally resulted in Brockelmann including the book in the list of al-Jīlī's writings.