Malik related to me that he heard that Isa ibn Maryam used to
say, "Do not speak much without the mention of Allah for you will
harden your hearts. A hard heart is far from Allah, but you do not
know. Do not look at the wrong actions of people as if you were lords.
Look at your wrong actions as if you were slaves. Some people are
afflicted by wrong action and some people are protected from it. Be
merciful to the people of affliction and praise Allah for His
protection."
Muwatta Malik Book 56, Hadith 8