Siraj al-Din Muhammad ibn Muhammad al-Sajawandi

Sirāj ud-Dīn Muhammad ibn Muhammad ibn 'Abd ur-Rashīd Sajāwandī also known as Abū Tāhir Muhammad al-Sajāwandī al-Hanafī and the honorific Sirāj ud-Dīn was a 12th-century Hanafi scholar of Islamic inheritance jurisprudence, mathematics astrology and geography. He is primarily known for his work Kitāb al-Farāʼiḍ al-Sirājīyah, commonly known simply as "the Sirājīyah", which is a principal work on Hanafi inheritance law. The work was translated into English by Sir William Jones in 1792 for subsequent use in the courts of British India. He was the grand-nephew of qari Muhammad ibn Tayfour Sajawandi. He lies buried in the Ziārat-e Hazrat-o 'Āshiqān wa Ārifān in Sajawand.