Abd Allah ibn Tahir
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Abd Allah ibn Tahir (fl. 15th century AH / 21st century CE) is a contemporary Islamic legal scholar, known for his jurisprudential work on financial transactions and contract theory, al-Uqud al-Mudafa ila Mithliha ("Contracts Appended to Their Like").
Education and Scholarly Career
His full name is Abd Allah ibn Umar ibn Tahir. He undertook extensive academic and traditional religious training under the Saudi jurist Sa'd ibn Nasir al-Shathri, studying under him for approximately ten years across various disciplines. His formal education under al-Shathri spanned three academic levels at the Faculty of Sharia as well as advanced study at the Higher Judicial Institute (al-Ma'had al-Ali li-l-Qada'). Outside formal institutions, he studied classical texts with al-Shathri in mosque study circles, covering collections such as the legal rulings (fatawa) of Ibn Taymiyyah and the legal maxims treatise of Ibn Rajab (al-Qawa'id). He also supervised the publication of al-Shathri's commentary on the didactic poem on legal maxims composed by Abd al-Rahman al-Sa'di (al-Manzuma al-Sa'diyya fi al-Qawa'id al-Fiqhiyya).
Standing and Contributions
Al-Shathri praised him for his dedication to both learning and teaching, his grasp of legal theory, his adherence to orthodox creed, and his character and scholarly etiquette. In the field of jurisprudence (fiqh) and legal maxims (qawa'id fiqhiyya), he composed his master's thesis, al-Uqud al-Mudafa ila Mithliha, which provides an inductive study of legal rulings governing agreements that are layered or appended onto preexisting contracts of the same genus and type—such as sub-agency, sub-leasing, and re-mortgaging. Al-Shathri reviewed the work and composed its foreword in Dhu al-Qa'dah 1432 AH (October 2011 CE), following which the author introduced further revisions and expansions before its general publication.
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List of Works
al-Uqud al-Mudafa ila Mithliha (Contracts Appended to Their Like) is a contemporary treatise on Islamic jurisprudence that examines legal rulings regarding transactions where a contract is layered or appended onto another agreement of the same type and genus.