Syahadat Kures is an oral tradition of Surakarta Kasunanan palace, typically practiced in rituals as a means of communication with perceived supernatural powers. This oral tradition adheres to the customs and patterns of life within palace community. This article aims to describe the content, meaning, and role of Syahadat Kures in the lives of the people residing in Surakarta Kasunanan palace. This research employs a qualitative descriptive approach with an ethnographic methodology. Data collection involves observation and literature review. The research employed purposive sampling and snowball sampling techniques. The research results encompass two aspects: (1) a description of the content, meaning, and direct role of Syahadat Kures in the lives of the people residing in Surakarta Kasunanan palace, and (2) the implementation of Islamic values in the domains of government, art, and culture at Surakarta Kasunanan palace. The effect of practicing Syahadat Kures is to obey God's commands and avoid God's prohibitions. This influence affects many parts of life in Surakarta Kasunanan palace, notably governance, arts, and culture. All these elements have meanings and purposes that are directly tied to Islamic beliefs. Thus, Syahadat Kures plays an essential role in the growth of Islamic preaching, particularly to the population of Surakarta Kasunanan palace. This study is intended to aid other researchers, particularly those working in culture, history, and religion.