The Three Necessary, Possible, and Impossible Categories

The conceptual framework that organizes Umm al-Barahin is the tripartite division of attributes into three categories: wajib (necessary), mustahil (impossible), and ja'iz (possible or contingent). This framework, inherited from earlier kalam tradition and developed by as-Sanusi into a comprehensive pedagogical tool, structures the entire exposition of Islamic theology.

For God, twenty attributes are categorized as wajib — necessarily belonging to God such that their negation would be impossible. These include existence (wujud), pre-eternity (qidam), everlastingness (baqa'), self-subsistence (qiyam bi-an-nafs), oneness (wahdaniyyah), power (qudrah), will (iradah), knowledge (ilm), life (hayah), hearing (sam'), sight (basar), and speech (kalam). Opposite to each of these, the contrary is mustahil — necessarily not true of God. And certain attributes are ja'iz with respect to God — possible but neither necessary nor impossible — such as the creation of any particular thing rather than another.

For the Prophets, a parallel framework applies. Prophets necessarily possess truthfulness (sidq), trustworthiness (amanah), the delivery of the message (tabligh), and intelligence (fatanah). Lying, betrayal, concealment of the message, and dim-wittedness are necessarily impossible for Prophets. Contingent human experiences — eating, sleeping, illness — are possible for Prophets and occurred without compromising their prophetic dignity.

This framework serves several educational purposes simultaneously. It provides students with a clear and memorable organizational structure for the large number of theological positions they need to master. It demonstrates the internal logic and coherence of the Sunni theological position: each necessary attribute of God can be shown to follow from others, and the package is mutually reinforcing. It also establishes criteria for evaluating theological claims: any position that attributes to God something mustahil or denies something wajib is thereby shown to be incorrect.

The pedagogical genius of the framework lies in its combination of systematic coverage with conceptual clarity. A student who has mastered the twenty necessary attributes and their opposites, and who understands the necessary and possible attributes of the Prophets, has a solid foundation for understanding the entirety of Islamic theology as presented in the Sunni kalam tradition. As-Sanusi's text presents this framework with great clarity and then provides rational arguments (barahin — proofs) for each necessary attribute.

The work's title Umm al-Barahin reflects this proofs-based approach. As-Sanusi does not simply assert these theological positions but provides rational demonstrations of why each necessary attribute of God must be affirmed and each impossible attribute denied. These demonstrations draw on the standard arguments of kalam theology while presenting them in accessible form.