The Rebo Wekasan tradition is popular in Indonesia during the month of Safar, prompting questions about its origins and Islamic basis. This practice involves specific rituals performed on the last Wednesday of Safar. The article explores the history of this tradition and examines different scholarly viewpoints regarding its compatibility with Islamic teachings. It delves into whether the practice has roots in Islamic scripture or is purely cultural. The text aims to clarify the basis of Rebo Wekasan by referencing relevant hadiths and interpretations. Ultimately, the article seeks to provide a comprehensive understanding of this tradition within an Indonesian context and its connection to Islam.