Suffering Wrong & Injustice
For a believer who has been a victim of wrong or injustice by others, the greatest comfort is that a day will come when he will receive full justice from Allah. No matter how insignificant or how critical the harm is, the offending parties will be called to account for their actions. No matter to whom an injustice was done, and no matter how long ago that aggression was committed, the matter will be kept on records until it is addressed. Even if everyone forgets the incident, Allah WILL NOT.
In Islam, injustice is not necessarily limited to physical and material harm. Violating a person’s honor and self-respect is also an act of injustice. A person who has done any injustice against another, be that even a negative comment made about him in his absence, will have to pay back to the victim in the Hereafter out of his own good deeds (unless the victim forgives him before he dies). If he runs out of his good deeds and still owes him, then he must take over equivalent amount of bad deeds from the victim.
This is so far as compensating the victim is concerned. He will still be liable to face punishment from Allah for committing the act of injustice and thus violating Allah’s commandments, unless both Allah and the victim forgive him. The believer should be patient having full assurance that Allah watches everything and will deliver justice.