It is narrated from Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) that he heard the Messenger of Allah (peace and blessings be upon him) say, a month before his death: "People ask about the Hour, yet its knowledge is only with Allah. And I swear by Allah that there is no living soul on the earth today upon which a hundred years will pass (and it remains alive)." This hadith has a sahih (authentic) chain of narration, but the two Shaykhs did not record it with these clear and reasonable words, from which it is understood that the Messenger of Allah (peace and blessings be upon him) meant only those people on the earth that day who had already been born: that they would not remain alive until a hundred years had passed from the time when the Prophet (peace and blessings be upon him) gave this address. It by no means signifies that one born after that year would not live a hundred years. Do you not see that the Commander of the Believers (may Allah be pleased with him) spoke sternly in this matter to Sayyiduna Abu Mas'ud al-Ansari (may Allah be pleased with him), even though he was one of the eminent Companions of the Messenger of Allah (peace and blessings be upon him)?