An important part of the controversy which animates the political debate today in the countries affected by the Arab Spring has its origin in the uncertainties which surround the process of secularization and democratization of political regimes. Indeed, the arrival of the Islamists in power updated the debate on the political / religion relationship and at the same time gave rise to questions about the nature of the relationship that the Islamist parties have with regard to the so-called values ​​of "modernity".

It is important to remember that the interaction between religion and politics constitutes an important regularity from which Arab-Muslim societies would escape. In Islam, all political institutions are said to be based on and cemented by religious dogmas. This interpretation of Islam has imposed practical arrangements between the state and society in the land of Islam to avoid the breakup of society or its dissolution into widespread anarchy. From the perspective of legitimization, the duty to obey, which transformed after the arrival of the Umayyad dynasty to power (661-749) into a constitutive norm of Muslim public law, has as a corollary the desire not to fall back into jahiliya (disorder) and to go beyond fitna .discord.

key words: interpretation, religion, dynasty, Muslim, legitimation