" Yes, but whoever submits his face (himself) to Allah and he is a Muhsin, i.e, doer of that which is best, then his reward is with his Lord. On such (a soul) shall there be no fear, nor shall they grieve. " [Qur’an Baqarah 2:112]
Mu'awiyah (RA) reported: The Messenger of Allah (SAW) said, "There will not cease to be a group of my Ummah who are obedient to Allah's orders. They will not be harmed by those who desert them, nor by those who oppose them, until Allah's order comes about, i.e, end of this world, ..." (Bukhari, Vol. 4, #3641; Muslim bi Sharh Nawawi, #4932)
Thawban (RA) reported: The Messenger of Allah (SAW) said, "The nations are about to invite one another and come upon you just as those partaking in meals invite others to share in their dish". Someone asked, 'Will that be because we are few in number that day?' He (SAW) replied, "No, at that time you will be numerous! But you will be froth/scum like the froth/scum carried by the torrent, and Allah will remove the fear of you from the hearts of your enemies, and Allah will indeed throw wahn into your hearts." Someone asked, 'What is wahn?' He (SAW) replied, "Love for the world and hatred for death." (Related by Abu Dawud, #4297)