No-one who was alive in 10 AH lived for more than one hundred years

The meaning of the hadeeth is clear and apparent,
and was borne out by  real events. The Prophet
(peace and blessings of Allaah be upon him) was stating that none of
the people who were alive at that time would live for more than a hundred
years, and this is what in fact happened. The last of the Sahaabah to
die passed away in 110 AH, i.e., he died one hundred years after the
Messenger (peace and blessings
of Allaah be upon him) died. His name was Abu’l-Tufayl ibn Waathilah.

Shaykh Sa’d al-Humayd

This hadeeth was narrated
by Imaam al-Bukhaari (may Allaah have mercy on him) in his Saheeh,
from ‘Abd-Allaah ibn ‘Umar, who said: “The Prophet
(peace and blessings of Allaah be upon him) led us in praying ‘Ishaa
towards the end of his life. When he had said the salaam, he
stood up and said: ‘Do you see this night of yours? One hundred years
from now, there will not be anyone left of those who are on the face
of the earth.’”

There follow some comments
made by Ibn Hajar (may Allaah have mercy on him) on this hadeeth:

“Led us in prayer” means as
an imaam.

“Towards the end of his life”. A corroborating
report narrated by Jaabir states that this was one month before he
(peace and blessings of Allaah be upon him) died.

“Do you see” means, “Think about (this
night).”

“One hundred years from now” means, when
one hundred years have passed.

“There will not be anyone left of those
who are on the face of the earth” means, anyone who was alive at that
time.

Ibn Battaal said: What the
Messenger (peace and blessings
of Allaah be upon him) meant was that during this time-span their generation
would pass away. He was pointing out to them how short their lives were
and that their lives were not like those of the nations who came before
them, so that they would strive hard in worship.

Al-Nawawi said: What is meant
is that everyone who was on the face of the earth on that night would
not live for more than one hundred years after that night, whether he
was young on that occasion or not. It does not mean that anyone who
was born after that night would not live for a hundred years. And Allaah
knows best.

This hadeeth is one of the
signs of the Prophethood of the Prophet
(peace and blessings of Allaah be upon him). He was speaking of future
events which came to pass as he described them. The trustworthy scholars
use this as evidence in refuting some of the Sufis who say that al-Khidr
is still alive until now.