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 (swt). No matter how insignificant or how grievous 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 (swt) will not. For example, the infants who were buried alive during Jahiliyyah (Age of Darkness before Islam) will not be forgotten. Allah (swt) will ask them about what their crime was for which they were buried alive:
When the female (infant) buried alive is questioned: for what crime she was killed; when the Scrolls are laid open; when the World on High is unveiled: when the Blazing Fire is kindled to fierce heat; and when the Garden is brought near; (Then) shall each soul know what it has put forward. (81:8-14)
In Islam, injustice is not necessarily limited to physical and material harm. Violating a person’s honor and dignity is also an act of injustice. Therefore, a Muslim should not speak ill of another person or make any negative comment about any individual in his absence regardless of whether that person has done something wrong or not. This is called gibah, which Islam forbids except only in a few cases. 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. The Prophet (pbuh) said:
He who has done a wrong affecting his brother’s honor or anything else, must ask his forgiveness for it today before the time (i.e., the Day of Judgment) when he will have neither a dinar nor a dirham. If he has done some good deeds, a portion equal to his wrong doings will be subtracted from them; but if he has no good deeds, he will be burdened with the evil deeds of the one he had wronged in the same proportion.
This is so far as compensating the victim is concerned. He will still be liable to face punishment from Allah (swt) for committing the act of injustice and thus violating Allah’s commandments, unless both Allah (swt) and the victim forgive him. The believer, therefore, should be patient having full assurance that Allah (swt) watches everything and will deliver justice:
We have made some of you as a trial for others: will ye have patience? For Allah is One Who sees (all things). (25:20)
Truly the reward of the Hereafter will be greater if they only realize (this)! (They are) those who persevere in patience and put their trust on their Lord. (16:41-42)
That is the ultimate comfort that a believer can have who has been wronged or oppressed by others. For there is a Judge higher than all other judges and an Authority above all other authorities. Unlike the judges in this world, this Judge never makes a mistake. For He is intimately aware of all things that occur and renders justice based on actual facts, and not on the presentation and performance of lawyers.