Allah (Subhaanahu Wa Ta’aalaa) sent His Last, Final and most Beloved Prophet, Hadhrat Muhammad (SallAllaho Alaihe WaSallam) to this world in the days of Jaahiliyyah (Ignorance). The Prophet Hadhrat Muhammad (SallAllaho Alaihe WaSallam) brought the mankind out of the darkness of Ignorance into the light of Knowledge and Awareness. His teachings spread noble and virtuous lifestyle not only within human society in this world but also directed them towards the bright and vivid conditions in the life in Aakhirah (Hereafter).
In a Hadeeth (Tradition), Allah (Subhaanahu Wa Ta’aalaa)’s Messenger (SallAllaho Alaihe WaSallam) said: "A Muslim is a brother of another Muslim, so he should not oppress him, nor should he hand him over to an oppressor. Whoever fulfilled the needs of his brother, Allah will fulfill his needs; whoever brought his (Muslim) brother out of a discomfort, Allah will bring him out of the discomforts of the Day of Resurrection, and whoever screened a Muslim, Allah will screen him on the Day of Qiyaamah (Resurrection).” (Bukhari)
Hadhrat Anas narrated that Allah (Subhaanahu Wa Ta’aalaa)’s Messenger (SallAllaho Alaihe WaSallam) said: "Help your brother, whether he is an oppressor or he is an oppressed one”.
People asked: "O Allah (Subhaanahu Wa Ta’aalaa)’s Messenger (SallAllaho Alaihe WaSallam)! It is all right to help him if he is oppressed, but how should we help him if he is an oppressor?”
The Prophet (SallAllaho Alaihe WaSallam) said: "By preventing him from oppressing others.” (Bukhari)
Hadhrat Mu’aawiyah bin Suwai reported that he heard Hadhrat Baraa’ Bin `Aazib saying: "Allah (Subhaanahu Wa Ta’aalaa)’s Messenger (SallAllaho Alaihe WaSallam) orders us to do seven things and prohibited us from doing seven other things.”
Then Hadhrat Baraa’ mentioned the following:
“(1) to pay a visit to the sick (inquiring about his health),
(2) to follow funeral processions,
(3) to say to a sneezer, "May Allah be merciful to you” (if he says, "Praise be to Allah!”),
(4) to return greetings,
(5) to help the oppressed,
(6) to accept invitations,
(7) to help others to fulfill their oaths.” (Bukhari)
Hadhrat Ibne `Umar narrated that Allah (Subhaanahu Wa Ta’aalaa)’s Messenger (SallAllaho Alaihe WaSallam) said: "Oppression will be a darkness on the Day of Resurrection.” (Bukhari)
The Prophet (SallAllaho Alaihe WaSallam) sent Hadhrat Mu`aaz to Yemen and advised him on many issues. Among those was: "Be afraid, from the curse of the oppressed as there is no screen between his invocation and Allah.” (Bukhari)
Hadhrat Abu Hurairah reported that Allah (Subhaanahu Wa Ta’aalaa)’s Messenger (SallAllaho Alaihe WaSallam) said: "Whoever has oppressed another person concerning his reputation or anything else, he should beg him to forgive him before the Day of Resurrection when there will be no money (to compensate for wrong deeds), but if he has good deeds, those good deeds will be taken from him according to his oppression which he has done, and if he has no good deeds, the sins of the oppressed person will be loaded on him.” (Bukhari)
Hadhrat Jaabir bin Abdullah reported that Allah (Subhaanahu Wa Ta’aalaa)’s Messenger (SallAllaho Alaihe WaSallam) said: “Be on your guard against committing oppression, for oppression is a darkness on the Day of Resurrection…” (Muslim)
Hadhrat Jaabir bin Abdullah also reported that two young men, one from the Muhajireen (Migrants) and the other one from the Ansaars (Helpers) fell into dispute and the Muhajir called his fellow Muhajireen, and the Ansaar called the Ansaars (for help). In the meanwhile, Allah (Subhaanahu Wa Ta’aalaa)’s Messenger (SallAllaho Alaihe WaSallam) came there and said: “What is this, the proclamation of the days of Jaahiliyyah (Ignorance)?”
They said: “O Allah (Subhaanahu Wa Ta’aalaa)’s Messenger (SallAllaho Alaihe WaSallam)! There is nothing serious. The two young men fell into dispute and the one struck at the back of the other.
Thereupon, he said: “Well, a person should help his brother whether he is an oppressor or an oppressed. If he is the oppressor he should prevent him from doing it, for that is his help; and if he is the oppressed he should be helped (against oppression)”. (Muslim)
Hadhrat Abu Hurairah reported Allah (Subhaanahu Wa Ta’aalaa)’s Messenger (SallAllaho Alaihe WaSallam) as saying: “When two persons indulge in hurling (abuses) upon one another, it would be the first one who would be the sinner so long as the oppressed does not transgress the limits”. (Muslim)
Hadhrat Ibne ‘Umar narrated that Holy Prophet (SallAllaho Alaihe WaSallam) said: "Oppression shall be darkness on the Day of Judgment.” (At-Tirmizi)
It was narrated from Hadhrat Anas bin Maalik that the Prophet, Hadhrat Muhammad (SallAllaho Alaihe WaSallam) said: "Help your brother whether he is an oppressor or oppressed.”
It was said: "O Messenger of Allah! I help him when he is oppressed. But how can I help him when he oppresses?”
He replied: "Prevent him from oppression. That is your help for him.” (At-Tirmizi)
Hadhrat Abu Hurairah narrated that Allah (Subhaanahu Wa Ta’aalaa)’s Messenger (SallAllaho Alaihe WaSallam) said: "Three supplications are accepted, there is no doubt in them (about them being accepted): The supplication of the oppressed, the supplication of the traveler, and the supplication of a father for his son.” (At-Tirmizi)
Hadhrat Umme Salamah narrated that when the Prophet would leave his house, he would say: “In the Name of Allah, I place my trust in Allah. O Allah! We seek refuge in You from slipping unintentionally or becoming misguided, or committing oppression or being oppressed, or acting ignorantly or being treated ignorantly. (At-Tirmizi)