Let us now suffice by saying that we can talk about the Islamic heritage in the form of definition because it has always sought to impose its sovereignty ignoring, and in some cases even nullifying, the local heritages that preceded it, because it belongs to what the Holy Qur’an calls ignorance, i.e. the period of ignorance of the true religion that God sent to his Prophet, the Seal of the Messengers. . This verbal definition of heritage, which destroys and erases others, is of course ignorant of the concepts of traditions and customs as crystallized by ethnography and cultural anthropology since the nineteenth century. The traditional tension between the biblical heritage as it exists among scholars and jurists, and the local traditions is enriched today by the revisions crystallized by critical history and the entirety of social sciences and introduced into the study of all forms of religious heritage, starting with Judaism and Christianity, which have always faced the challenges of modernity.