al-Bayhaqi

Ahmad ibn al-Husayn al-Bayhaqi (384-458 AH / 994-1066 CE) was one of the most prolific hadith scholars and the leading Shafii muhaddith of his era. Born in Bayhaq (near Nishapur in Khorasan), he studied under the foremost scholars of his time, including al-Hakim an-Naysaburi, who was his primary teacher. His scholarly output is remarkable in both volume and quality, with major contributions to hadith, jurisprudence, and creed.

Al-Bayhaqi's magnum opus, as-Sunan al-Kubra (The Great Sunan), is one of the largest hadith compilations ever assembled, containing approximately 21,000 narrations organized by legal topics. It serves as an encyclopedia of the evidence for Shafii jurisprudence while also presenting the views of other schools. He also authored as-Sunan as-Sughra (The Small Sunan), Marifat as-Sunan wal-Athar (an abridged version with commentary), Shuab al-Iman (Branches of Faith), Dala'il an-Nubuwwah (Proofs of Prophethood), and al-Asma was-Sifat (Divine Names and Attributes).

Al-Bayhaqi was deeply committed to defending the Shafii and Ash'ari scholarly traditions, and his works reflect a careful balance between hadith-based evidence and theological precision. He died in Nishapur in 458 AH (1066 CE). His as-Sunan al-Kubra remains one of the most important reference works for hadith scholars and jurists, and his other works on faith and prophetic proofs continue to be widely read and cited.