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All Journal Pena Justisia: Media Komunikasi dan Kajian Hukum Astroislamica: Journal of Islamic Astronomy
Muh. Rasywan Syarif
Universitas Islam Negeri Alauddin Makassar
Religion Astronomy Law, Crime, Criminology & Criminal Justice

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Fiqh Principles and the Legitimacy of Indonesia's Isbat Session System Annisa Nurfadilah; Ahmad Adib Rofiuddin; Muh. Rasywan Syarif
Astroislamica: Journal of Islamic Astronomy Vol. 4 No. 2 (2025): Astroislamica: Journal of Islamic Astronomy (Desember)
Publisher : Islamic Astronomy Department, Sharia and Law Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47766/astroislamica.v4i2.6890

Abstract

This study aims to examine the sharia legitimacy of the Isbat Session in determining the beginning of the lunar month in Indonesia through the perspective of the fiqh principle of Tasharruf al-Imam ‘ala al-Ra’iyyah Manutun bi al-Maslahah. The focus of the study is to analyze the normative basis of this principle as a basis for state authority and to test the effectiveness of its implementation in reconciling differences in hisab-rukyat and realizing the welfare of the people. The study uses empirical qualitative methods with content analysis and critical discourse analysis approaches. Primary data includes official documents from the Ministry of Religious Affairs regarding the results of the Isbat Session for the 2015–2025 period and public responses, while secondary data are sourced from fiqh literature, journals, and related books. The research findings indicate that the Isbat Session has strong sharia legitimacy based on the principle of tasharruf al-imam, where the state acts as ulil amri who ensures the realization of public welfare through collective decisions. Empirically, 82% of the Isbat Session decisions were successfully agreed upon by the government, NU, and Muhammadiyah, proving the forum's effectiveness as a unifying instrument. However, 18% of the differences that occurred—particularly with Muhammadiyah—were caused by fundamental methodological differences between rukyat bil fi'li (NU) and hisab wujudul hilal (Muhammadiyah). This study concludes that the Isbat Session is a form of Islamic jurisprudence that is valid according to sharia and effective in creating legal certainty and social stability, although further efforts are still needed to embrace the remaining methodological differences.
Reevaluating the -20° Astronomical Dawn Angle: An Islamic Jurisprudential and Astronomical Analysis of Subh Time Determination in South Sulawesi Wahidin; Abd. Karim Faiz; Muh. Rasywan Syarif
Pena Justisia: Media Komunikasi dan Kajian Hukum Vol. 24 No. 1 (2025): Pena Justisia
Publisher : Faculty of Law, Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/pj.v24i1.6486

Abstract

The -20o dawn standard that applies in Indonesia has become a problem when the results of observations and research show that the appearance of dawn with the -20o standard is considered too fast. Based on this, researchers in this study conducted dawn observations in South Sulawesi at Aparalang Cliff in Bulukumba. The purpose of this study is to describe the method and basis of the Ministry of Religious Affairs of the Republic of Indonesia regarding the determination of dawn -20o. Second, to analyse the data of dawn appearance in Aparalang Cliff, Bulukumba, South Sulawesi based on digital image instrument. Third, to analyse the variation of dawn data from the perspective of wadh'i law. This research method is qualitative with observation at Aparalang Cliff with location specifications -5o 32' 14" (South latitude) and 120o 25' 50" (East longitude). The research time was conducted in July 2023. The result of this research is the government's provision of the Sun's position -20o below ufuq refers to the opinion of Ibn Yunus during the time of Al-Biruni, 958-1009 AD. Observation of dawn conducted on the cliff aparalang bulukumba South Sulawesi dawn (astronomical twilight) can be seen when the sun position -18o below ufuq. Fajr prayer time with a standard of -20o as determined by the government through the Ministry of Religious Affairs of the Republic of Indonesia is contrary to the concept of Wadh'i Law because the cause of the law does not yet exist in the condition of -20o.
Co-Authors Abd. Karim Faiz Ahmad Adib Rofiuddin Annisa Nurfadilah Wahidin