'Haider's study makes an important and much-needed contribution to the study of the origins of Imâmî and Zaydî Shiʿism as independent branches of Islam. Through his analysis of ritual practice, the legality of intoxicating drinks, and the emergence of distinct ritual locations, Haider produces a compelling case for the central role of legal discursive analysis of Kûfan ḥadîth in the articulation of Imâmî and Zaydî Shiʿi religious, political, and social identities. The Origins of the Shîʿa will be of interest to many in the fields of Islamic history, ritual studies, and law, and [Haider's] extensive use of charts to organize and explain his data and highly structured chapters make this complex historical data readable …' Karen G. Ruffle, Journal of the American Oriental Society 'This study provides a significant contribution to the fields of Shīʿi studies, Islamic law and early history of Islam, but perhaps mostly to ḥadīth studies. Haider successfully implements a new method on Muslim traditions and reaches ground-breaking conclusions regarding the origins of early Shīʿism.' Seyfeddin Kara, Ilahiyat Studies: A Journal on Islamic and Religious Studies