Acquiring goods and wealth has been a fundamental aspect of human existence throughout history. The acquisition of these resources is necessary for the sustenance of life and the pursuit of prosperity. However, another fundamental human need has been the protection of the assets they own. It is in this context that the significance of the wadīah contract, which falls within the purview of contracts founded upon trust and confidence, becomes evident. This contract pertains to the transfer of a property to another individual for the purpose of safeguarding it. As a consequence of the historical process, which has seen the advent of money as a medium of exchange and the growth of commercial activities, there has been a corresponding increase in the demand for banking services. This has in turn led to the evolution of banking practices. The wadīah contract, which forms the foundation of banking systems from the past to the present, has been a central element in these practices. In the period preceding the advent of Islam, banking activities underwent a transformation, shifting from their original context within temples to conventional banking practices that involved the charging of interest. Over the course of Islamic history, a number of banking institutions emerged, including the Bayt al-Mal, Jehbezes, and Sarrafs, which introduced Islamic banking, based on the principle of interest-free finance. The wadīah contract, with some differences in terms of its name and application, is a contract that is applied in both conventional and Islamic banking. It is therefore a contract that is fundamental to the practice of banking, having existed in both pre-Islamic and Islamic history.