Mandiu pasili tradition is a wedding bathing tradition in the Kaili tribe. This tradition to carry out two or three days after the marriage contract is implemented at the bride's house door. The mandiu pasili tradition is still carried out by the Kaili tribe in Wani Satu Village, which uses various tools and materials that contain philosophical meanings in its implementation. The purpose of the research is to describe how religious leaders view the implementation of this tradition and how the position of the mandiu pasili tradition is viewed from perspective ‘urf. The research method used is Juridical Empirical. The research approach used is descriptive and qualitative. The research is located in Wani Satu Village, Tanantovea District, Donggala Regency. Data were obtained through interviews and documentation. The results of the study are as follows: first, religious leaders have two views on implementing the mandiu pasili tradition. Namely, the mandiu pasili tradition is classified as ‘urf sahih because there are teachings of Islam in its implementation. On the other hand, the mandiu pasili tradition is classified as ‘urf fasid because it is considered not by Islam. Second, the position of the mandiu pasili tradition in the perspective of ‘urf is classified as ‘urf fasid because there are several implementations of this tradition that are not by the teachings of Islam. This tradition has good aims, and in terms of the tools and materials used, none of them violate the teachings of Islam. However, with some processions considered not by Islam's teachings, the whole mandiu pasili tradition is categorized as ‘urf al-fasid.