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After Muhammad's (PBUH) death, Umar denied the fact that the beloved Prophet passed away. He pulled out his sword and threatened to cut off the head of anyone who says that Muhammad (PBUH) is dead. Abu Bakr said something to console him. What did Abu Bakr say?
He said that if you used to worship Muhammad (PBUH), then he is indeed dead. But, if you used to worship Allah and FOLLOW the Prophet, then he is very much alive.