The thirty years that followed the death of the Prophet Muhammad in 11 A.H. / 632 A.D. constitute, in the Islamic historical imagination, a period of unique moral and political significance. The reigns of the four rightly guided caliphs — Abu Bakr al-Siddiq, 'Umar ibn al-Khattab, 'Uthman ibn 'Affan, and 'Ali ibn Abi Talib — saw the consolidation of the young Muslim state against the apostasy movements that threatened to dissolve it immediately after the Prophet's death, the extraordinary military expansion that brought the Byzantine and Sasanid Persian empires to their knees, and the elaboration of administrative, judicial, and fiscal institutions whose principles informed Islamic governance for centuries. It was also a period shadowed by civil war, political sedition, and the assassinations of three of the four caliphs — events whose interpretation has divided Muslim communities ever since. To write about this era honestly requires, as Husain acknowledges in his preface, freedom from both hagiographic excess and polemical distortion. The Glorious Caliphate achieves that balance with uncommon consistency.
The volume is organised in two movements. Part One reconstructs the lives and careers of all four caliphs in biographical sequence, beginning with a chapter on the Arabian world on the eve of Islam and the Prophet's ministry, and proceeding through the accessions, campaigns, domestic challenges, personal characters, and deaths of each caliph in turn. The biographical sections are not merely narrative: they attend carefully to the political dynamics within the early Muslim community, to the tribal and clan interests that inflected every political decision, and to the theological stakes of each major episode. The riddah wars of Abu Bakr's reign — in which large sections of the Arabian Peninsula withdrew from Islam or refused to pay zakat — are understood not merely as military events but as a constitutional crisis whose resolution set the terms of Islamic political authority for the era that followed. The vast campaigns of 'Umar's caliphate, which brought Persia, Syria, Palestine, and Egypt within the Muslim orbit within the space of a decade, are treated with strategic as well as theological attention: Husain is interested in why these armies won, and his analysis of the Battle of Qadisiyyah, the siege of Damascus, and the Battle of Yarmuk reflects genuine military historical understanding.
The chapters on 'Uthman are among the most nuanced in the volume. The third caliph's reign was marked by genuine administrative achievement — the completion of the Qur'anic codex, significant territorial expansion, the first Muslim naval victory — but also by mounting discontent over appointments, nepotism, and the concentration of administrative positions within the Umayyad clan. Husain examines the causes of the sedition that led to 'Uthman's murder with historical care, neither dismissing the grievances of the rebels nor endorsing the political methods by which they prosecuted them. His treatment of 'Uthman's refusal to resign under duress or call his armies to defend him — a decision that cost him his life but preserved, he believed, the unity of the Muslim community — is among the most searching passages in the book.
The chapters on 'Ali follow a caliph who assumed office amid civil war, governed through the Battle of the Camel and the long agony of Siffin, confronted the emergence of the Kharijite movement, and was finally assassinated by one of their number. Husain reads 'Ali's caliphate as a period of profound spiritual grandeur coexisting with acute political difficulty: the same caliph who failed to stabilise the Muslim polity was, in Husain's account and in the Islamic tradition he draws on, the Gate of Knowledge and the origin of three of the four major Sufi orders.
Part Two shifts from biography to institutional history, and it is here that Husain's professional background as a senior revenue and finance official of the Indian state becomes most visible. The chapter on the system of government (Chapter 13) develops a detailed account of the constitutional theory of the Islamic caliphate, drawn from Qur'anic verses and the practice of the four caliphs, and distinguishes it with care from theocracy on the one hand and modern democracy on the other. The advisory council (shura), the appointment and oversight of governors, the mechanisms of accountability — including the remarkable tradition of 'Umar walking the streets at night to hear complaints and regularly humbling himself before ordinary subjects — are documented with reference to primary sources including Tabari, Ibn Sa'ad, and Suyuti.
The economic chapters are the most technically distinctive section of the book. The analysis of zakat law, kharaj assessment methodology, jizyah administration, 'ushr on trade goods, the management of the bait al-mal, and the treatment of mines and war spoils is precise and draws directly on Abu Yusuf's Kitab al-Kharaj, the foundational text of Islamic fiscal jurisprudence. Husain's account of 'Umar's land revenue assessment criteria — which he suggests have not been surpassed as a model of equitable agricultural taxation — reflects the conviction of a practitioner who has studied both Islamic fiscal law and the practical difficulties of revenue administration in a vast agrarian empire. The chapter on the judicial system analyses the appointment criteria for qadis, the institution of the muftis, and the legal principle that the caliph himself was subject to the same law as any subject.
The public works and military chapters document the infrastructure of the early caliphate with an attention to detail unusual in general histories of the period: the specific canals dug in Iraq, the founding of Fustat and Basra, the road and outpost networks, the recruitment and equipment of the Muslim armies, the rules of engagement issued to commanders, and the intelligence systems deployed in the field. The final chapter — "Summing Up" — draws these threads together in a reflective assessment of the caliphate's historical significance that is both scholarly and, at its best, genuinely moving in its portrait of four men who ruled an empire while living with the simplicity and God-consciousness of ascetics.
The bibliography is substantial and represents a genuine engagement with both the classical Arabic tradition and twentieth-century Western scholarship. Primary sources include Tabari's History, Ibn Sa'ad's Tabaqat, Baladhuri's Futuh al-Buldan, and works by Ibn Kathir, Suyuti, and Shibli Nu'mani. Western sources drawn upon include Edward Gibbon, Sir William Muir's Annals of the Early Caliphate, Philip Hitti's The Arabs, and Sir Thomas Arnold's The Caliphate. The combination produces a work that is credible across a wide range of readerships.
The Glorious Caliphate was first published in 1974 and reprinted in 1980 and 2000 — an arc of sustained scholarly utility that reflects the absence of comparable English-language alternatives. Its present digital edition makes it accessible to the global English-speaking Muslim readership and to scholars and students of Islamic history for whom a work of this scope, grounded in primary sources and written by a Muslim author with administrative expertise, fills a genuine gap.