One of the Asharah Mubasharah:
Hazrat ‘Uthmaan (radhiyallahu ‘anhu) was one of the ten Sahaabah (radhiyallahu ‘anhum) who were given the glad tidings of Jannah by Rasulullah (sallallahu ‘alaihi wasallam) in one gathering.
Hazrat ‘Abdur Rahmaan bin ‘Auf (radhiyallahu ‘anhu) reports that Rasulullah (sallallahu ‘alaihi wasallam) said, “Hazrat Abu Bakr (radhiyallahu ‘anhu) is among the people of Jannah, Hazrat ‘Umar (radhiyallahu ‘anhu) is among the people of Jannah, Hazrat ‘Uthmaan (radhiyallahu ‘anhu) is among the people of Jannah, Hazrat ‘Ali (radhiyallahu ‘anhu) is among the people of Jannah, Hazrat Talhah (radhiyallahu ‘anhu) is among the people of Jannah, Hazrat Zubair (radhiyallahu ‘anhu) is among the people of Jannah, Hazrat ‘Abdur Rahmaan bin ‘Auf (radhiyallahu ‘anhu) is among the people of Jannah, Hazrat Sa’d (radhiyallahu ‘anhu) is among the people of Jannah, Hazrat Sa‘eed (radhiyallahu ‘anhu) is among the people of Jannah and Hazrat Abu ‘Ubaidah bin Jarraah (radhiyallahu ‘anhu) is among the people of Jannah.
(Sunan Tirmizi #3747)