The Book Pertaining to the Merits of the Companions (Allah Be Pleased With Them) of the Holy Prophet (May Peace Be Upon Him) (Kitab Al-Fada'il Al-Sahabah)

Muslim :: Book 31 : Hadith 6163

Jabir b. 'Abdullah reported Allah's Apostle (may peace be upon him) as saying one mouth before his death (or something like it): None amongst the created beings who had been living by that time (during the lifetime of Allah's Apostle).... 'Abd al-Rahman has interpreted these words of Allah's Apostle (may peace be upon him) as: The ages (of the people) would be diminished.