Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates from the Prophet (peace and blessings of Allah be upon him) that he said: "Do not harbor hatred among yourselves, do not envy one another, and do not act with hypocrisy. Be, O servants of Allah, brothers to one another."

Sayyiduna Anas (may Allah be pleased with him) reports that the Messenger of Allah (peace and blessings be upon him) said: "When two persons love each other for the sake of Allah, or he said, for the sake of Islam, then the first sin committed by either of them causes separation between them."

It is narrated from Hisham bin 'Amir Ansari, who was a cousin of Anas bin Malik and whose father was martyred on the day of Uhud, that he said he heard the Messenger of Allah (peace and blessings be upon him) say: "It is not permissible for a Muslim to cut off relations with another Muslim for more than three days. As long as both of them persist in this estrangement, they remain away from the truth. And whoever reconciles first, his initiative will be an expiation for his sin. If they die in this state of estrangement, they will never enter Paradise together. And if one of them greets the other and the other does not accept his greeting, then an angel responds to the one who greeted, and Satan responds to the one who refused. Whoever ends this situation first, his action will be an expiation for the previous mistake. And if both die in this state, neither of them will ever enter Paradise. And if one greets and the other refuses to accept the greeting, then an angel responds to the one who greeted, and Satan responds to the one who refused."

Narrated from Sayyidah Aisha (may Allah be pleased with her), she said: The Messenger of Allah (peace and blessings be upon him) said: "I know when you are angry and when you are pleased." I asked, "How do you know that?" He said: "Indeed, when you are happy, you say (when swearing an oath), 'Yes, by the Lord of Muhammad (peace and blessings be upon him),' and when you are angry, you say, 'Yes, by the Lord of Ibrahim.'" Sayyidah Aisha (may Allah be pleased with her) said: I replied, "Yes, O Messenger of Allah, it is just as you say. I only avoid mentioning your name."

It is narrated from Sayyiduna Abu Khirash Salmi, may Allah be pleased with him, that he heard the Messenger of Allah, peace and blessings be upon him, say: "Whoever severs ties with his brother for a year, it is as if he has shed his blood (i.e., killed him)."

It is narrated from Sayyiduna Abu Ayyub Ansari (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said: "It is not permissible for a Muslim to sever relations with his brother for more than three days; when they meet, one turns away from the other and the other turns away from him. The better of the two is the one who greets (with salam) first."

It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him), he said that the Messenger of Allah (peace and blessings of Allah be upon him) said: "Do not bear malice against one another, do not envy one another, and be, O servants of Allah, brothers to one another."

Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates from the Prophet (peace and blessings of Allah be upon him) that he said: "On the Day of Resurrection, the worst person in the sight of Allah will be the two-faced person who comes to some people with one face and to others with another face. He comes to these people with one side and to those people with the other side."

Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates that the Prophet (peace and blessings of Allah be upon him) said: "Always avoid suspicion, for suspicion is the most false of speech, and do not artificially raise prices to entrap others, do not quarrel with one another, do not envy one another, do not harbor malice against one another, do not give preference to yourselves with hypocrisy or enmity, do not sever relations with one another, and O servants of Allah, become brothers to one another."

It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: "The gates of Paradise are opened on Mondays and Thursdays, and every servant who does not associate anything with Allah is forgiven, except for the person between whom and his brother there is enmity. It is said regarding them: Give them respite until they reconcile with each other."