Musnad Ahmad Hadith 14012

It is narrated from Anas (may Allah be pleased with him) that once I was with the Prophet (peace and blessings of Allah be upon him) in his house, when a man asked this question: "O Messenger of Allah (peace and blessings of Allah be upon him)! When will the Hour (Day of Judgment) be established?" The Prophet (peace and blessings of Allah be upon him) said, "What preparation have you made for the Hour?" He replied, "I have not prepared many good deeds, but I do love Allah and His Messenger." The Prophet (peace and blessings of Allah be upon him) said, "You will be with those whom you love, and you will get what you have earned." Then the Prophet (peace and blessings of Allah be upon him) stood up and started praying. After finishing the prayer, he said, "Where is the person who asked about the Hour?" So that man was brought. The Prophet (peace and blessings of Allah be upon him) looked around the room and saw a boy from the tribe of Daws, the tribe of Abu Hurairah (may Allah be pleased with him), whose name was Sa'd bin Malik. The Prophet (peace and blessings of Allah be upon him) said, "If this boy lives a long life, it is possible that he will not reach old age before the Hour is established." Anas (may Allah be pleased with him) says that the boy was of my age.