Al-Sihmim fi Ma'rifat 'Ilm al-Falak al-Shar'i al-Muta'alliq bi-al-Tarikh wa-al-Tawqit wa-al-Taqwim الصهميم في معرفة علم الفلك الشرعي المتعلق بالتاريخ والتوقيت والتقويم

Al-Sahmim fi Ma'rifat 'Ilm al-Falak al-Shar'i al-Muta'alliq bi al-Tarikh wa al-Tawqit wa al-Taqwim is a comprehensive contemporary manual on Islamic astronomy and sacred timekeeping. Published by Dar al-Minhaj (Jeddah), it presents the principles of 'ilm al-falak al-shar'i as they relate to Islamic chronology, prayer times, and calendrical calculations, combining the classical juristic tradition with practical astronomical methods.

The work was authored by the late scholar and astronomer Sayyid Ayub bin Abkar Asad bin Ali al-Ahdal (d. 1445 AH / 2023 CE), a distinguished Yemeni scholar from the historic region of Tihamah. He studied and later taught at Madrasah Sawlatiyyah in Makkah, the renowned institution founded by Allama Rahmatullah Kairanawi. For well over a century, the madrasah has been recognized as an important center for the study of Islamic astronomy, sacred timekeeping, and the traditional Islamic sciences. Drawing upon this scholarly heritage, Sayyid Ayub presents complex astronomical principles in a clear, systematic, and accessible manner.

The book covers a wide range of topics related to Islamic astronomy and chronology, including:

• The principles of Islamic astronomy ('ilm al-falak al-shar'i) and their application to religious timekeeping.
• Astronomical methods for determining the prescribed times of the five daily prayers.
• The Hijri calendar, Islamic chronology, and the historical development of calendrical systems.
• Mathematical methods used in calendrical calculations and the conversion of dates.
• The astronomical foundations underlying traditional Islamic timekeeping.

Produced to Dar al-Minhaj's exacting editorial standards, this edition features clear Arabic typography, high-quality printing, and numerous diagrams, tables, and charts that simplify complex astronomical calculations. It is an excellent resource for students of Shariah, teachers, researchers, and anyone seeking a deeper understanding of the scientific principles that underpin Islamic timekeeping and calendrical computation.