Traces of the sahaba era on coastal Sumatera: Nurturing local wisdom for religious moderation

The traces of the Sahaba era on Coastal Sumatra have been proven to exist through the monument of the zero point of Islamic civilization in Barus, which was inaugurated by the President of the Republic of Indonesia, Joko Widodo, in 2017. This paradigm has been constructed to demonstrate that the Sahaba era was not limited to the Arabian Peninsula, as historical evidence supports the journey of the Sahaba to various regions of the world in the mission of da'wah. The purpose of this paper is to reveal the presence of traces of the Sahaba era in the archipelago, specifically through the discovery of the tombs of Sahaba Rukunuddin and Mahmud in Barus, North Sumatra, Indonesia. The existence of these traces, when examined through hadith studies, will broaden perspectives on the role of the Sahaba in cultural acculturation. This research employs a combination of qualitative fieldwork and literature review methods, utilizing data sources such as literature, books, previous research, and field observations. The existence of tomb sites has been verified through interviews, supporting the construction of research that reveals the beginnings of Islamic civilization in the archipelago. The traces of the Sahaba era, which are correlated with the Islamization of the archipelago, are shown to be deeply intertwined with local wisdom. The peaceful process that occurred has led to acculturation within a moderate form of Islam, which is crucial to maintain. The dynamics of preserving moderate Islam, alongside an understanding of local wisdom, are part of the assimilation of the best eras and generations.