From the Characteristics of the Salaf(Pious Predecessors)
Hiding the Mistakes of Others
by: Shaykh Ahmed Fareed
From the morals and manners of the Salaf was that they would constantly
conceal the mistakes of their brothers and their severe dialogue
with their own souls concerning the station of caution (at- tawara').
So they would hate embarrassing anyone remembering their own mistakes
in their words, actions, food and drink. They would search their
bodies so they did not find themselves trespassing into the forbidden
especially with regards to the tongue, stomach, private parts and
The Messenger of Allaah [sallallaahu 'alahi wa sallam] said, "Abstain
from the forbidden and you will be the most devout worshippers amongst
the people. Be content with what Allaah allocates for you from provision
and you will be the richest of people. Be good to your neighbor
and you will be a believer. Love for the people what you love for
yourself and you will be a Muslim and do not increase in laughter
because too much laughter kills the heart. 
Yoonus ibn 'Ubaid (ra) said, "True carefulness in religion
is to depart from all doubtfulness and to account the soul with
every step. So whoever is not like that cannot be said to be cautious.
One of the Salaf said, "Do not undermine cautiousness in tiny
things since that is a ladder leading to degrading cautiousness
in larger things."
Dahhaak used to say, "We met a certain people who would travel
for three months or more to learn caution in religious matters.
Today people do not seek this and do not practice it even if their
attention is brought to it."
If the Salaf dropped some money in a place and they returned to
that place, on realizing their money was missing they would not
take it on seeing it saying, It is possible that this money is from
someone else's pocket and someone took my money.
1. Reported by at-TlrDlidhi (9/183,184) in az-Zuhd, Ahmad (2/310),
Ibn Maajah (4217) in az-Zuhd with this meaning - Al-Albaani makes