The paper showed the reasons for the necessity of moving from calibration to codification, whether the reasons are related to the industry itself or global variables and the emergence of financial technology fintech and its impact, and the problem of adopting standards as a legislative and judicial reference because the mechanism of litigation and global legislation differs from the mechanism of jurisprudence The mechanism of jurisprudence is based on the partial sub-study because it was stemming from a mujtahid who owns the queen of ijtihad, a scholar of jurisprudence and its origins, as for the modern mechanism, it starts from an objective holistic study and then builds contracts and partial provisions and the overall Islamic understanding It was present in the minds of diligent and inimitable and all he needs is extracted in writing and rooting from the study of the branches and the formulation of jurisprudence in a way that harmonizes the mechanism of legislation and global litigation and the paper showed contraindications to the adoption of standards as a legal and judicial reference where sometimes did not take into account the standards of legal dimensions and the study showed that the absence of total understanding inherited a disorder in the basics of contracts, whether their divisions or pillars and the associated conditions and the concept of money and its types, as well as the consequences of breach of obligations of the effects. And the need for a holistic and original understanding of financial transactions, and the paper showed the most important