It is narrated from Imam Sadeq (AS) who said:

Forbearance (self-control, restraint and tolerance) is the light of Allah (SWT). There are five occasions which require forbearance: When a dignified person is humiliated; when a truthful person is accused unfairly; when a person invites (everyone) to truth but he/she is belittled; when an innocent person is bothered and harassed; when a justice seeking person is denied. If in all of these five occasions you behave justly, then you are a tolerant and forbearing person [1].

[1] Beharul Anwaar, Vol. 68, Page 422.

Source: en.shafaqna.com