4.12 The Khilafah state is a human not a theological state
he Islamic State is the Khilafah. It is the supreme leadership over all the Muslims worldwide, so if a Khalifah was given a legitimate bayah in any Muslim country, and Khilafah was established, then it is forbidden upon Muslims worldwide to establish another Khilafah. This is due to the saying of the Messenger (PBUH): .
“If bayah was taken to two Khalifahs, then kill the latter of them.” [Muslim, Sahih, #1853].
Khilafah is established for implementing the rules of the Islamic Sharia using the concepts that Islam has brought and the rules that it has legislated; and also to convey the Islamic Message to the world. The message is conveyed by introducing Islam to the people and calling on them to embrace it and performing Jihad in the way of Allah. Khilafah is also known as Imamah or Imaratul-Mu‘mineen (leadership of the believers). It is a temporal post and not a post related to the hereafter. The Khilafah exists to implement Islam on people and to spread it among them. It is definitely different to the Prophethood. .
The Prophethood is a theological position, which Allah (S.W.T) gives to whomever He wishes. The Khilafah on the other hand is a human post whereby the Muslims give their bayah to whomever they wish, and appoint whomever they like over them as Khalifah from among the Muslims. Our Messenger Muhammad (PBUH) was a ruler who implemented the Shariah which he received from Allah (S.W.T). .
So He (PBUH) held the Prophethood and the Messengership and at the same time assuming the post of presiding over the Muslims in implementing the rules of Islam. Allah (S.W.T) thus commanded him to rule as well as to convey the Message. .