KHILAFAH
Khilafah is a global state for one ummah one unity~,based on a hadith,"the messenger of Allah(saw)said,'the prophethood will be among you as long as Allah wills,then He will eliminate it if He so wills.Then a khilafah on the model of prophethood will prevail so long as Allah wills,then He will eliminate it if He so wills.Then there will be a biting monarchy as long as Allah wills,then He will eliminate it if He so wills.Then there will be an oppressive monarchy as long as Allah wills,then He will eliminate it if He so wills.Then a khilafah on the way of prophethood will prevail and he kept silent(Ahmed)'.."
Hadith from Musnad Ahmad ibn Hanbal , "Hadhrat Huzaifa narrated that the Messenger of Allah said: Prophethood will remain among you as long as Allah wills. Then Caliphate (Khilafah) on the lines of Prophethood shall commence, and remain as long as Allah wills. Then corrupt/erosive monarchy would take place, and it will remain as long as Allah wills. After that, despotic kingship would emerge, and it will remain as long as Allah wills. Then, the Caliphate (Khilafah) shall come once again based on the precept of Prophethood."
HIZBUT TAHRIR
Hizbut Tahrir was established in response to the saying of Allah (swt), ((Let there be among you a group that invites to the good, orders what is right and forbids what is evil, and they are those who are successful)) [TMQ 3:104]
Its purpose was to revive the Islamic Ummah from the severe decline that it had reached, and to liberate it from the thoughts, systems and laws of Kufr, as well as the domination and influence of the Kufr states. It also aims to restore the Islamic Khilafah State so that the ruling by what Allah (swt) revealed returns.
Its aim is to resume the Islamic way of life and to convey the Islamic da'wah to the world. This objective means bringing the Muslims back to living an Islamic way of life in Dar al-Islam and in an Islamic society such that all of life's affairs in society are administered according to the Shari'ah rules, and the viewpoint in it is the halal and the haram under the shade of the Islamic State, which is the Khilafah State.
The Party, as well, aims at the correct revival of the Ummah through enlightened thought. It also strives to bring her back to her previous might and glory such tat she wrests the reins of initiative away from other states and nations, and returns to her rightful place as the first state in the world, as she was in the past, when she governs the world according to the laws of Islam.