Abstract

Following the formation of disciplines/sciences in different fields of Islamic thought, the specific concepts and terminologies of these disciplines/sciences began to emerge. Then the special meaning and the area of utilization for every concept in each discipline/science were further clarified by compiling specific epistles of definition (ḥudūd), which would contribute to this process of conceptualization. For the terminological meaning of the used concept to be determined primarily and thus for the followed theological/sectarian affiliation to be supported, works belonging to this genre have been written specifically for the field of theology. Especially, the Muʿtazilī theologians undoubtedly made the greatest contribution. Thusly, specific treatises containing theological concepts were compiled by names such as al-Qāḍī ʿAbd al-Jabbār (d. 415/1025), and his students Abū Rashīd al-Nīsābūrī (d. after 420/1029) and Ibn Sharwīn (fl. first half of the Vth/XIth century). Zaydī theologian and jurist Abū’l-Qāsim al-Bustī’s (d. 420/1029) Tahdhīb al-ḥudūd, which has no available copy, is also contemporary to the mentioned works. This tradition found its reflection in the Imāmī-Muʿtazilī line in Abū Jaʿfar al-Ṭūsī’s (d. 460/1067) al-Muqaddimah fī l-madkhal ilá ṣināʿat ʿilm al-kalām, which could be seen as a concise theological work in terms of its construct and the explanations which it comprises, and in the work called al-Ḥudūd wa-l-ḥaqāʾiq, which is attributed to al-Sharīf al-Murtaḍá (d. 436/1044). Abū Jaʿfar al-Muqrī al-Nīsābūrī’s (d. mid-VIth/XIIth century [?]) al-Ḥudūd stands out as the most voluminous example in this tradition. The most important work belonging to this genre in the Muʿtazilī tradition, as it is the first among the available works, is the Ḥudūd al-alfāẓ of al-Qāḍī ʿAbd al-Jabbār, which is found together with some other important Zaydī-Muʿtazilī works in a compilation discovered by us and thought to be lost until recently. In this treatise, which generally includes theological concepts and partially includes the concepts of Islamic law and the history of sects, al-Qāḍī ʿAbd al-Jabbār has put forward a language-based definition theory. His approach here is in line with the views he put forward on definition in his al-Mughnī. Accordingly, instead of definition (ḥadd) and description (rasm) carried out over five universals in classical logic, he adopted a method of lexical definition based on wording that agrees with the meaning of the concept in question and is clearer than it, and consequently gave a brief definition and explanation of the concept he deals with. This clearly shows that the previous Muʿtazilī theologians’ approach of language-based definition, which was used as an alternative to the conception of Aristotelian definition due to their distanced stance to philosophy was also inherited by al-Qāḍī ʿAbd al-Jabbār. The approach seen in some sources in the period following al-Qāḍī, such as Abū Rashīd al-Nīsābūrī’s al-Ḥudūd, also indicates his influence.