It is the duty of Muslims to strive for the establishment of an Islamic state...
It is the duty of Muslims to strive for the establishment of an Islamic state, led by a just Imam, following the principles of the Holy Qur'an and the traditions of the Prophet (sunnah) so that Muslims can live in its protective shadow of security, happiness and prosperity. Characteristics of a Muslim Imam (leader) He should be familiar with Islamic rules, legislation and laws. He should be just, God-fearing, pious, and adhere to Islam.
He should be adequate to run Muslim affairs politically, socially, economically ...etc. Adopting an Islamic system with all its obligations, needs a deep and accurate knowledge and a clear assimilation of the Holy Qur'an and the Prophetic traditions. Such cannot be achieved unless the Imam is a jurisprudent with extensive understanding of Islamic laws. To be just is also an essential prerequisite for the Imam in order to keep away corruption and deviation.
Allah, the Almighty, says: “And do not incline to those who are unjust, lest the Fire touches you...” Holy Qur'an (11:113) And also says: “...and if any fail to judge by (the light of) what Allah has revealed, they are (no better than) the infidels.” Holy Qur'an (5:47) [^1]: While Imam Ali [a] was in prayer in the Holy Prophet's Mosque in Madina, a man came seeking charity.
No one took any notice and he was about to leave disappointed when Imam Ali [a] pointed his finger towards him while he was bowing in prayer. The man took the ring from the Imam's finger. While this was happening in the Mosque, this verse was revealed to the [s]. [^2]: Sunan ibn Maja - Merits of Imam Ali [a] Previous…