Larangan Perkawinan Akibat Sumpah Babisiak di Nagari Lunto Kecamatan Lembah Segar Kota Sawahlunto dalam Perspektif Sadd-Aldzariah

This study examines the prohibition of marriage based on the babisiak oath in Nagari Lunto, Lembah Segar District, Sawahlunto City, from the perspective of Sadd al-Dzari’ah and the views of Generation Z. The babisiak oath is a traditional vow made by previous ninik mamak (customary elders) declaring that members of the Buo Bungo tribe and the Kutia Anyia Bawah tribe are forbidden to marry, as the elders had sworn a brotherhood bond known as batali budi. This research employs a qualitative field research approach. Data were collected through in-depth interviews with the Head of the Kerapatan Adat Nagari (KAN) of Lunto Village and several Generation Z members residing in the area. The collected data were analyzed using descriptive and qualitative methods. The findings indicate that, from the perspective of Sadd al-Dzari’ah, the marriage prohibition falls into the third category, namely a permissible act that has a strong potential to cause harm. Allowing such marriages could reopen historical conflicts, expose past grievances between the tribes, and potentially lead to social or physical disputes. Furthermore, Generation Z’s perspectives on the prohibition can be classified into three groups: those who remain obedient to the custom, those who hold a moderate stance, and those who tend to reject the prohibition. Despite these differences, most Generation Z respondents acknowledge that the babisiak oath has historical and social value that deserves preservation. However, they also emphasize the need to reinterpret its implementation in the contemporary context to prevent conflicts between customary law, Islamic legal principles, and individual freedom.