Why did the Prophet (peace and blessings of Allaah be upon him) not tell us when the Hour would begin?

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The Prophet (peace and blessings of Allaah be upon him) did not know when the Hour would begin
Will we see the Mahdi et al. in our lifetimes?

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Related Answers:
The Messiah son of Maryam and the false messiah (Dajjaal)
The Hadeeth “There is no Mahdi except ‘Eesa” is not Saheeh
Madeenah will have seven gates when the Dajjaal comes
The Prophet (peace and blessings of Allaah be upon him) did not know when the Hour would begin
Will we see the Mahdi et al. in our lifetimes?

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