Introduction

Abu Hamid Muhammad ibn Muhammad al-Ghazali al-Tusi was born in 450 AH in Tus, Khurasan, and died in 505 AH. He is among the most consequential figures in the history of Islamic thought, having produced major works in jurisprudence, theology, philosophy, and spirituality. Trained under Imam al-Haramayn al-Juwayni at the Nizamiyyah of Nishapur, al-Ghazali subsequently taught at the Nizamiyyah of Baghdad and authored his celebrated Tahafut al-Falasifah, a systematic critique of Aristotelian philosophy. His personal spiritual crisis, described in Al-Munqidh min al-Dalal, led him to withdraw from public life and produce the encyclopedic Ihya' Ulum al-Din. Al-Iqtisad fi al-I'tiqad was composed before this crisis, during his years as a leading theologian of the Ash'ari school, and represents his most systematic contribution to the science of kalam.

The title itself — Al-Iqtisad, meaning moderation or the middle course — signals al-Ghazali's governing intention. He positions the work between two extremes he considers equally harmful: the excessive rationalism of the Mu'tazilah, who subordinated revealed texts to speculative reason, and the blind imitation of those who refused to examine the rational grounds of belief. Al-Ghazali argues that the theologian's task is to establish the articles of faith through disciplined rational proofs while remaining anchored in the Quran and Sunnah. The work is divided into principal sections covering the divine essence and attributes, prophethood and the conditions of the prophetic office, and eschatology. Each section proceeds from basic definitions through formal proofs, with careful attention to possible objections and their refutations.

Within the Ash'ari tradition, al-Iqtisad holds a place of high authority. It synthesizes the methods of al-Juwayni with al-Ghazali's own philosophical acuity, and its treatment of the divine attributes — particularly the relation between the essential and active attributes, and the question of God's knowledge of particulars — became standard reference material for later theologians. The work influenced Fakhr al-Din al-Razi, and through him shaped the entire tradition of post-classical Ash'ari kalam. Scholars of the Maturidi school also engaged with it, noting both convergences and points of disagreement. For historians of Islamic philosophy, the book illustrates the productive but contested boundary between kalam and falsafah in the fifth and sixth centuries of the hijra.

Readers coming to al-Iqtisad for the first time should approach it as a work of systematic theology in the classical sense: arguments are formal, vocabulary is technical, and the author assumes familiarity with basic logical categories. The book rewards methodical reading chapter by chapter, as al-Ghazali builds his positions incrementally. Those studying within the Ahl us-Sunnah wal-Jama'ah tradition will find that al-Ghazali's conclusions on the divine attributes, prophethood, and the Hereafter align with the consensus of Sunni scholars, even where his methods of argumentation differ from the Athari approach. Reading al-Iqtisad alongside al-Ghazali's shorter credal works and his later spiritual writings gives the fullest picture of a scholar who sought to make Islamic belief both rationally defensible and spiritually transformative.