Musnad Abu Ya'la al-Mawsili 42:433

And from Abu Sa'id, from the Messenger of Allah, may Allah bless him and grant him peace—Abu Khaythama was uncertain about [the name] Abu Sa'id—that he said: "Whoever dies from the people of the world, whether young or old, they will be returned to [the age of] sixty years in Paradise; they will never increase beyond that. And likewise are the people of the Fire."