Some people (of my ummah) would kill the each others or imprison the others.

Hadith: 

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Thauban Radi Allahu Anhu reported that Allah's Messenger (may peace be upon him) said: Allah drew the ends of the world near one another for my sake. And I have seen its eastern and western ends. And the dominion of my Unimah would reach those ends which have been drawn near me and I have been granted the red and the white trea- sure and I begged my Lord for my Ummah that it should not be destroyed because of famine, nor be dominated by an enemy who is not amongst them to take their lives and destroy them root and branch, and my Lord said: Muhammad Sal-Allahu Alaihi Wasallam , whenever I make a decision, there is none to change it. Well, I grant you for your Ummah that it would not be destroyed by famine and it would not be dominated by an enemy who would not be amongst it and would take their lives and destroy them root and branch even if all the people from the different parts of the world join hands together (for this purpose), but it would be from amongst them, (your Ummah) that some people (of my ummah) would kill the each others or imprison the others.

Sahih Muslim, Book 41, 6904