Having understood that scientific economics, i.e. economics with measurement, has been fully described for more than fourteen centuries in the holy book of the Qur'an, we thought that we could find in this user's manual, prepared by the Creator of the world, a guide to facilitate the understanding of a discipline that is solely His domain. Thus, we realized that man is naturally endowed with very ancient skills and knowledge that are pre-requisites in economics and are identified in the Quran. In doing so, we have come across a suggestive pedagogy to support the learning of economics by seeking to fill the theoretical knowledge deficit that needs to be acquired to constitute the explanatory theory of the real foundation of the machine practices operated by man, to make him capable of permanently ensuring the realization of justice between people during exchanges. Such is the objective assigned to this permanent guide of economy.