There are three broad types of injustice:
1- To be unjust towards Allah The Almighty: The most heinous forms of this type are disbelief, polytheism, and hypocrisy. Allah The Almighty Says (what means):
{And [mention, O Muhammad], when Luqmaan said to his son while he was instructing him, “O my son, do not associate [anything] with Allah. Indeed, association [with him] is great injustice.”}[Qur’an 31:13]
{Indeed, the curse of Allah is upon the unjust.} [Qur’an 11:18]
2- To be unjust towards other people: Allah The Almighty Says (what means):
{And the recompense of an odious deed is an odious deed the like of it; yet whoever is clement and acts righteously, then his reward is up to Allah. Surely, He does not love the unjust.}[Qur’an 42:40]
{The cause is only against the ones who wrong the people and tyrannise upon the earth without right. Those will have a painful punishment.} [Qur’an 42:42]
3- To be unjust towards oneself: Allah The Almighty Says (what means):
{Then we caused to inherit the Book those We have chosen of Our servants; and among them is he who wrongs himself.} [Qur’an 35:32]
{He [Moosa] said, “My Lord, indeed I have wronged myself, so forgive me,” and He forgave him. Indeed, He is the Forgiving, the Merciful.} [Qur’an 28:16]
In fact, all three types are considered as doing injustice to oneself as one wrongs oneself when one intends to do injustice.
Ath-Thahabi, may Allah have mercy upon him, maintained that injustice is a major sin and said that doing injustice to others may take the form of trespassing on their property, abusing them physically or verbally, and attacking the weak. He mentioned the Qur’anic verses and Prophetic Hadiths that threaten the unjust. Then he reported that some of the righteous predecessors said, “Do not wrong the weak so as not to be one of the evil strong people.” In addition to this, he mentioned some forms of injustice that he considered to be major sins:
lDevouring the property of orphans
l Procrastination in repaying debts despite the ability to repay at the due time.
lDenying a wife her rights such as dowry, clothing and provision.
lDenying a labourer his wage or salary
lInaccurate divisions and valuation, which are considered major sins, according to Ibn Hajar, may Allah have mercy upon him. The Texts of the Shari‘ah Dispraise Injustice
Allah The Almighty Says (what means):
{And those cities - We destroyed them when they wronged, and We made for their destruction an appointed time.} [Qur’an 18:59]
{And in no way did We do injustice to them, but it is they who were the unjust.} [Qur’an 43:76]
{Allah does not love the unjust.}[Qur’an 3:57]
{And your Lord does injustice to no one.}[Qur’an 18:49]
{And your Lord is not ever unjust to [His] servants.} [Qur’an 41:46]
{Verily the unjust are surely in perpetual torment.} [Qur’an 42:45]
In addition, there are many Qur’anic verses that speak about doing injustice to oneself. These verses explain that this type of injustice comes in two forms: Shirk (polytheism), and disobeying Allah The Almighty. Shirk is the most heinous of sins; Allah The Almighty Says (what means): {Then we caused to inherit the Book those We have chosen of Our servants; and among them is he who wrongs himself, and among them is he who is moderate, and among them is he who is foremost in good deeds by permission of Allah. That [inheritance] is what is the great bounty.}[Qur’an 35:32]
Doing injustice to others through aggression against their lives, property or anything else, is dispraised in many Qur’anic verses such as the verse that reads (what means):{The cause is only against the ones who wrong the people and tyrannise upon the earth without right. Those will have a painful punishment.}[Qur’an 42:42]
Similarly, the Hadiths of the Prophet, sallallaahu ‘alaihi wa sallam, dispraise injustice:
l It was narrated on the authority of Abu Moosa Al-Ash‘ari, may Allah be pleased with him, that the Prophet, sallallaahu ‘alaihi wa sallam, said: “Indeed, Allah gives respite to the oppressor, but when He seizes him, He does not let him escape.” Then he recited:{And thus is the taking away of your Lord when He takes away the towns [while] they are unjust; surely His taking away is painful [and] strict.}[Qur’an 11:102] [Al-Bukhari and Muslim]
lThe Prophet, sallallaahu ‘alaihi wa sallam, said:“Protect yourselves against doing injustice, for injustice will be darkness on the Day of Resurrection.” [Muslim]
l‘Aa’ishah, may Allah be pleased with her, said to Abu Salamah ibn ‘Abdur Rahman, may Allah be pleased with him, who was disputing with some people over a piece of land, “O Abu Salamah, beware of seizing land unjustly because the Prophet, sallallaahu ‘alaihi wa sallam, said, ‘Whoever seizes unlawfully a hand-span of land, a collar of seven lands will be around his neck [in the Hereafter].’” [Al-Bukhari and Muslim]
lIt was narrated on the authority of Huthayfah, may Allah be pleased with him, that the Prophet, sallallaahu ‘alaihi wa sallam, said: “Do not be blind followers and say: ‘If people do good, we do good, and if people do injustice, we do injustice.’ Adjust yourselves; when people do good, do good, and when they wrong, do not do injustice.”[At-Tirmithi]
lIt was narrated on the authority of ‘Abdullah ibn Mas‘ood, may Allah be pleased with him, that the Prophet, sallallaahu ‘alaihi wa sallam, said: “Whenever a person is murdered, there is a share of the burden of the crime on the son of ’Aadam [Adam], may Allah exalt his mention, since he was the first to commit murder.”[Al-Bukhaari and Muslim]
lIt was narrated on the authority of Abu Hurairah, may Allah be pleased with him, that the Prophet, sallallaahu ‘alaihi wa sallam, said: Do not envy one another; do not commit Najash [to overbid against a rival purchaser simply to harm him with no intention of buying the merchandise]; do not hate one another; do not turn your backs on one another; do not enter into commercial transactions when others have entered into that [transaction]; rather, be, O slaves of Allah, brothers. A Muslim is the brother of a Muslim; he does not do injustice to him, he does not let him down, and he does not disdain him. Piety is here, [and he pointed to his chest three times]. It is enough evil for a Muslim to disdain his brother Muslim. All of a Muslim is inviolable for other Muslims: his blood [life], his property and his honour.[Muslim]
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