Hazrat Moulana Ashraf Ali Thaanwi (rahimahullah) once mentioned the following:
If a person becomes angry with someone, then he should either leave the place or ask the person with whom he is angry to leave (i.e. if he has some authority over the person, e.g. one’s worker, he should ask him to leave). He should also drink some cold water (to cool himself down).
If he is extremely angry (and cannot contain his anger, then in order for him to gain control over himself), he should think to himself that Allah Ta‘ala has many rights over us which we are not fulfilling correctly. Despite us erring so much and not fulfilling His rights correctly, He continues to forgive us and overlook our faults. Hence, in the same way, we should also forgive and overlook the faults of His servants. Otherwise, if Allah Ta‘ala were to take us to account (for all our mistakes and shortcomings), then what will our condition be?
(Malfoozaat Hakeemul Ummat 11/100)
Source: Ihyaauddeen.co.za