The Prophet (s) said “O Ali, the people of the most admirable faith and the greatest conviction are those who will live in the last of time: they did not catch (the time) of the Prophet (s) and were not given an opportunity to meet the Representative of Allah; yet, they believed while they did not see anything.”

al-Mawaaizh by Sheikh Saduq pg 87

A man defamed and slandered another man in presence of the Prophet, peace be upon him and his progeny, so a person from the people present, refuted him. The Prophet (s), said: “Whoever defends the honor of his brother, that act will shield him from hellfire.”[i]

[i] al-Amaali by Sheikh al-Mufeed