The Hayaa of Hazrat ‘Uthmaan (radhiyallahu ‘anhu)
Hazrat Anas (radhiyallahu ‘anhu) reports that Rasulullah (sallallahu ‘alaihi wasallam) said, “The most merciful of my ummah towards my ummah is Hazrat Abu Bakr (radhiyallahu ‘anhu), and the most staunch in (upholding) the command of Allah Ta‘ala is Hazrat ‘Umar (radhiyallahu ‘anhu), and the most true in hayaa is Hazrat ‘Uthmaan bin ‘Affaan (radhiyallahu ‘anhu), and the most knowledgeable regarding halaal and haraam is Hazrat Mu‘aaz bin Jabal (radhiyallahu ‘anhu), and the most knowledgeable regarding the masaa’il of inheritance is Hazrat Zaid bin Thaabit (radhiyallahu ‘anhu), and the most knowledgeable regarding the recitation of the Qur’aan Majeed is Hazrat Ubayy bin Ka‘b (radhiyallahu ‘anhu), and every Ummah has a trustee, and the trustee of this ummah is Hazrat Abu ‘Ubaidah bin Jarraah (radhiyallahu ‘anhu).”
(Sunan Tirmizi #3790)