It is narrated from Hazrat Anas (may Allah be pleased with him) that a man submitted in the court of the Prophet, "O Messenger of Allah (peace and blessings be upon him)! When will the Hour (Day of Judgment) be established?" At that time, there was also an Ansari boy named Muhammad present with the Prophet (peace and blessings be upon him). The Prophet (peace and blessings be upon him) said, "If this boy lives, it is possible that the Hour will come before he reaches old age."