The legal texts require that the one dealing with it possess scientific competence that makes him qualified to derive legal rulings. This is what made legal texts functional texts that enabled those dealing with them to possess a scientific, functional, practical language that was characterized as the language of evidence, and if these legal texts enabled those dealing with them to possess scientific competence, one of the most important features of which was the expansion of perceptions, because these texts require to understand them that one dealing with it should be familiar with the Arabic linguistic sciences, such as grammar, morphology, and rhetoric, and what is not linguistic, such as verbal contexts that depend on understanding the deliberative meanings between the interlocutors. It also imposes on him scientific competence in partnership with specialists in other sciences, such as commentators and scholars of hadith. In this research, we will try to clarify how these legal texts are made with the person dealing with them, a personality that carries in its perceptions a scientific competence that makes it have straight logic and correct thought that enables it to understand the events and processes in the reality in which it lives, and it is infallible from modern contradictions in the various political, social and cultural fields that are taking place in the modern era.