Theoretical Foundations of the Unity of the Islamic Ummah according to Amir al-Mu'minin Ali (AS)

It's been a long time that Islamic scholars consider the unity and solidarity of the Islamic nations as one of the most urgent needs of the Islamic Ummah and have always provided solutions to this end. Undoubtedly, the identification and analysis of the components and factors of creating unity among Muslim community from the point of view of Amir al-Mu'minin Ali (AS) will have a great importance. Therefore the present article aims by the use of the speech of Imam Ali attempts to investigate the theoretical and doctrinal foundations of establishing the Islamic Ummah. Through focusing on the Imam Ali (AS) guidelines, one can point to these fundamental and influential axes: Tawhid, Islam, Quran, the tradition of prophetic, the imamate and fair and wise leader. So when the people of the society come into the unity and accept the principles, society will be close to the intended purpose and away from conflict.