This study explores the thoughts of Zaid bin Ali on credit transactions within the framework of economic justice in Islam. The research addresses key issues related to fairness, transparency, and ethical considerations in credit transactions, particularly in avoiding exploitation and ensuring mutual benefit. The study aims to analyze Zaid bin Ali’s perspectives on economic justice and their relevance to contemporary Islamic finance. Using a qualitative approach, this research employs library research methods by examining classical Islamic texts and scholarly interpretations. The findings reveal that Zaid bin Ali emphasized fairness in credit transactions by advocating for clear contractual terms, the prohibition of usury (riba), and the importance of ethical responsibility among transacting parties. His views align with the broader Islamic economic principles that seek to promote justice, balance, and social welfare. The study contributes to the discourse on Islamic economic thought by highlighting the relevance of classical Islamic perspectives in addressing modern financial issues. These findings can serve as a foundation for developing fairer and more ethical financial practices in contemporary Islamic banking and finance.