Umm al-Barahin (), also known as al-'Aqida al-Sanusiyya al-Sughra () is a short, systematic methodological treatise on the Ash'ari theology that systematizes the essentials of Sunni belief and their rational justifications. It was authored by the Maghribian Maliki scholar, Muhammad ibn Yusuf al-Sanusi (d. 895/1490). The work aims to provide a definitive, evidence-based foundation for Islamic creed ('aqidah). Despite its brevity, it's packed with dense theological concepts and has been a core text in Islamic seminaries across the Muslim world for centuries to the present time. Its name, "The Mother of Proofs," stems from its role as the foundational source and most comprehensive collection of rational proofs in Islamic creed.

The work is considered an abridgment of both (the Middle Creed) and (the Major Creed) by al-Sanusi. It contains the core tenets found in other major theological works, both long and short. Al-Sanusi explained the creed in a simple manner to make it easily memorized and understood by ordinary students. Due to its clarity and comprehensiveness, the text was adopted as official doctrine across the Malay Peninsula. However, Syed Dawilah says that "though the work of Umm al-Barahin is small in size, the arguments it presents before the reader are far-reaching and highly philosophical."

In his commentary on Umm al-Barahin, al-Sanusi establishes a central feature of the work: the systematic and logical refutation of philosophical and theological groups that deviated from the mainstream Sunni creed. The commentary is structured around positive proof for Sunni beliefs, but each proof inherently serves as a rebuttal to opposing views. His primary targets were: The Anthropomorphists (those who ascribe human characteristics to God): He vehemently opposed any interpretation of divine attributes that implied corporeality, direction, or physical location for God. He used rational proofs to affirm that God exists without a place and is not subject to human characteristics. The Mu'tazilis (an extreme rationalist theological school): He extensively refuted their core tenets, such as: denying God's eternal attributes (like Knowledge, Power, Will); and their doctrine of Khalq al-Qur'an (the createdness of the Qur'an). For al-Sanusi, affirming these attributes as real and eternal was paramount to upholding divine transcendence and speech. The Philosophers (particularly naturalists and Brahmins): He refuted their metaphysical concepts, such as the belief in the world's pre-eternity (qidam al-'alam), a view that directly contradicted the theological doctrines of creation ex nihilo, the divine will and volition, the origination of the world (huduth al-'alam), and the perfection of its design—which constitutes the primary basis for its evidence of a Wise Maker (al-Sani' al-Hakim).

The influence of Umm al-Barahin extended far beyond the Arabic-speaking world. In West Africa, it became the most respected creed among Fulani scholars, who translated it into Fulfulde and considered its memorization essential. Its reach also extended to Southeast Asia, where it was translated into Malay-Jawi script multiple times and formed the basis for the "Sifat Dua Puluh" (Twenty Attributes) doctrine prevalent in the region. Furthermore, it was translated early into European languages, including German (1848), French (1896), Italian (1901), and English (1930), attracting significant academic interest.

Author

Abu 'Abd Allah Muhammad ibn Yusuf al-Sanusi (832 - 895 A.H. / 1428 - 1490 C.E.) was a prominent North African polymath from what is now Algeria. He was a Maliki jurist, Ash'ari theologian, and Sufi scholar and mystic, best known for his foundational contributions to Islamic creed ('aqīdah) and theology (kalām), with his works being highly regarded in Sunni Islam, particularly within the Ash'ari tradition.

A Javanese transcription of al-Sanusi's gloss on his own primer, Umm al-Barahin, describes the author as "the glory of the sainted muhaqqiqin (researchers)". This description aligns with the assessment of scholars such as the Egyptian professor , who considered al-Sanusi the most important North African Ash'ari scholar after Ibn Tumart. Madkur notes that al-Sanusi was influenced by al-Ash'ari, al-Baqillani, and al-Juwayni. As a result, al-Sanusi's own work combines the ideas of these earlier thinkers.

Regarding al-Sanusi's personality and scholarly excellence, the Egyptian scholar Ahmad Muhammad al-Suhaymi describes him as follows:

Content and structure The work primarily deals with the core tenets of Islamic belief, particularly focusing on the existence of God (Allah), His oneness and His attributes, prophethood, and other core tenets. The creed follows a balanced methodology, integrating both religious texts and rational proofs. The text is concise but dense, structured in a logical manner with premises and conclusions, making it a key text in traditional Islamic learning curricula, especially in North and West Africa. It's considered a gateway to deeper theological studies, often followed by more advanced commentaries.

Epistemology and logical foundations Al-Sanusi organizes rational judgments into three categories: Necessary (Wajib): That whose non-existence (negation) is not rationally conceivable. Impossible (Mustahil): That whose existence (affirmation) is not rationally conceivable. Possible (Ja'iz): That whose existence (affirmation) and non-existence (negation) are equally rationally conceivable.

The opening lines of the text, whereas al-Sanusi defines the three basic logical categories of his argument, go as follows:

Existence of God

The text begins by establishing that for every created thing that comes into existence, there must be a pre-existent cause. This logical chain ultimately points to a single, uncaused cause—God (Allah).

Al-Sanusi's argument synthesizes empirical observation—noting the changeability of accidents (a'rād)—with rational deduction, applying principles like concomitance and preponderance (tarjīh) to demonstrate that the universe is contingent and temporally originated (hādith). This contingency necessarily entails a volitional, necessary creator. The argument thus affirms God's absolute oneness and perfection, utterly transcendent beyond all comparison.

The argument's structure can be broken down as follows: The Premise of Temporality (Huduth): The observable world consists of bodies (ajsām) invariably characterized by transient accidents, most evidently motion (haraka) and rest (sukun). The constant alteration of these states—from existence to non-existence and vice-versa—proves their contingent and temporal nature. A fundamental principle holds that whatever is eternal (qadīm) cannot be nullified. Since motion and rest are observed to cease, they cannot be eternal and must therefore be temporally originated. The Inseparability of Accidents and Bodies: Crucially, bodies cannot exist independently of these accidents; their very existence entails being in a state of motion or rest. This establishes a logical concomitance. Applying the axiom that "whatever is concomitant with a temporally originated entity is itself temporally originated," it follows that the bodies—and thus the entire universe—must also be temporally originated. The universe, therefore, is not eternal but had a beginning. The Impossibility of Self-Creation: Having established the universe's contingent origin, the argument demonstrates its need for an external creator. It posits that for a contingent entity to bring itself into existence would create an irrational logical contradiction. Before any entity exists, the states of being and non-being are two equal potentialities. Actualizing existence requires a pre-existing factor—a preponderator (murajjih). This external agent provides a reason for existence to be chosen over non-existence, thus tipping the balance toward existence, as without such an agent, one would have to accept the impossible combination of two contradictory states: absolute equality between existence and non-existence, alongside a preponderance (tarjīh) without a preponderator. The Necessity of an External Preponderator: This logical impossibility proves that no contingent entity can be self-existent.The mere existence of the universe, with its specific forms, measures, times, and places—all chosen from among infinite, equally possible alternatives—demands an external agent who made that choice. This agent is the Preponderator (al-Murajjih), who must be beyond the chain of contingency—the Necessary Existent (Wājib al-Wujūd). The Rejection of Infinite Regress: The argument implicitly and explicitly rejects an infinite regress of causes (tasalsul). An infinite chain of contingent causes merely postpones the problem without providing an ultimate explanation for existence. The chain must therefore terminate in a first, uncaused cause.

Al-Sanusi's central argument for the existence of God rests on proving the impossibility of self-creation. He begins with the premise that the world is temporal and contingent (hādith), meaning its existence or non-existence was equally possible before it came into being, with no inherent reason for one state to prevail over the other. If the world had brought itself into existence without a creator, it would mean that one of two equal possibilities prevailed over the other for no reason, which is logically impossible.

This principle is illustrated by al-Mallali, a disciple of al-Sanusi, through an analogy of a perfectly balanced scale. He posits two identical scales in a state of equilibrium, where neither side is heavier than the other. In such a scenario, for one side to descend, a specific cause—such as adding a weight to it or removing one from the other—is necessary. To elaborate further, observing from a distance, if one sees the scales tilt one way and the other rise, and then later their positions reverse, the intellect necessarily concludes that an external cause—like a weight being added or removed—even if unseen, must have acted upon them. Therefore, to suggest the movement happened without a cause is rationally untenable.

Al-Mallali applies this to the state of the world: its previous non-existence and subsequent existence are analogous to the two sides of the scale. The transition from one state to its opposite must have a compelling reason, just like the moving scale. Thus, the fact that the world exists instead of not existing necessitates an external, transcendent cause that preferred existence over non-existence. This ultimate "Selector" or "Preferrer" (al-Murajjih) is God.

This foundational argument is supported by detailed logical proofs within the Kalam tradition that further establish the Creator's necessary attributes. The temporality of the world (i.e., it has a beginning), for instance, is rigorously demonstrated through its inherent dependency on transient "accidents" (a'rād), such as motion and rest. These accidents are themselves temporal, not eternal, as they are observed to change constantly from non-existence into existence (like starting to move) and from existence into non-existence (like stopping). If these accidents were eternal, they could never change or cease. Since physical bodies (ajsām) cannot exist independently of these accidents, and because whatever is inseparable from a temporal entity must itself be temporal, the entire physical universe is proven to be temporal and therefore created.

Having established the existence of a Creator, the argument then proves His necessary eternity (qidam). The reasoning is based on the premise that every existent must be either eternal or temporal. If God were temporal, He would require a cause or a creator to bring Him into existence. This creator, if it were also temporal, would in turn need another creator, and so on. This leads to two logical impossibilities: