It is narrated on the authority of Abu Huraira (Radhiallahu ‘anhu):
that the Messenger of Allah (salallahu alayhi wa sallam) said:
The (Last) Hour shall not come till the sun rises from the place of its setting. And on the day when it rises from the place of its setting even if all the people together affirmed their faith, it would not be of any avail to one who did not believe previously and derived no good out of his belief.
[ Sahih Muslim ]