The limited scholarly attention to the tradition of mappanini bosi, or rain-stopping rituals led by shamans in Bugis society, forms the background of this study, given the significant role this tradition plays in religious practices and the preservation of local culture, particularly in Pinrang Regency. This research aims to analyze the practice of mappanini bosi in Bugis wedding ceremonies and examine its legal status from an Islamic perspective. A qualitative method with a phenomenological approach was used, involving informants such as sanro (rain shamans), community leaders, and residents of Waetuoe Village, selected through purposive sampling. Data were collected through in-depth interviews and observation, then analyzed thematically. The findings show that mappanini bosi is a form of local wisdom serving as an effort to prevent rain during important events, especially weddings. From the perspective of Islamic law, this tradition is acceptable as long as it does not involve elements of shirk and is based on prayers and supplications to Allah SWT. These findings align with the theory of maslahah mursalah and the concept of ‘urf in Islamic jurisprudence, both of which recognize customary practices as sources of law, provided they do not contradict the principles of sharia. The main conclusion of this study is that mappanini bosi holds social and spiritual value and may be categorized as a beneficial practice (amal bermaslahat) when performed in accordance with the principle of tawhid. The implications include enriching the literature on the relationship between Islamic law and local culture and offering recommendations for religious and community leaders to preserve tradition in an Islamic framework without compromising aqidah. The study also opens opportunities for further research on integrating Islamic values into other Bugis cultural practices.