Waislamu wana wajibu wa kuishi katika dola moja, na kutawaliwa na Khalifa mmoja. Haijuzu kwa Waislamu duniani kuwa na zaidi ya dola moja na zaidi ya Khalifa mmoja.

The Muslims are obliged to live in one state, and be ruled by one Khaleefah. It is forbidden for the Muslims in the world to have more than one state and more than one Khaleefah.

Ni pia lazima mfumo wa utawala katika Dola ya Khilafah uwe mfumo wa umoja, na ni haramu kuwa mfumo wa muungano (shirikisho la mataifa).

It is also necessary that the ruling system in the Khilafah State be a system of unity, and forbidden to be a system of union (federation of states).

Hii ni kutokana na hadithi aliyoipokea Muslim, kwamba ‘Abdullah bin ‘Amr bin al-‘Aas alisema kwamba alimsikia Mtume wa Allah ﷺ akisema:

This is due to what Muslim narrated that ‘Abdullah ibn ‘Amru ibn al- ’Aas said that He heard the Messenger of Allah (pbuh) say:

"Yeyote aliyeapa utii kwa Imamu akimpa kiganja cha mkono wake na tunda la moyo wake, amtii kadiri awezavyo, na ikiwa mwingine atakuja kugombea naye, basi ni lazima apige shingo ya huyo wa mwisho." Pia imepokewa na Muslim kwamba Arfajah alisema: "Nilimsikia Mtume ﷺ akisema"