This article examines the application of Islamic jurisprudential rules in the context of Islamic banking, employing a moderate approach grounded in practical experience and investigation. The article explores various topics, including the rules of "Kul Qardh Jarr Manfa’ah Fahuwa Riba"[1], "Sihat"[2], "Akal Māl bi Bātil"[3], "Maqbūdh bi Aqd Fāsid"[4], "Nafy-e Qharar"[5], "Al-Uqūd Tābi’ah lil-Qusūd"[6], "Al-Muminūn Ind Shurūtihim"[7], and "Istīmān"[8] with deference to their implications in banking contracts, banking transactions and regulations of non-usurious banking operations. Recruiting a descriptive-analytical approach, the article delves more exclusively into the status of these rules in banking civil partnership and Mudhāribah[9] contracts.