The right of a Muslim over a Muslim

Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) transmits this saying of the Prophet (peace and blessings be upon him): "A Muslim is the brother of a Muslim; he does not wrong him and he does not forsake him." The Prophet (peace and blessings be upon him) also said: "By the One in whose Hand is my soul, whenever two people love one another, separation between them occurs only because of a sin that one of them has committed." The Prophet (peace and blessings be upon him) also said: "A Muslim has a right over his brother that he show him six kinds of kindness: when he sneezes, he responds to his sneeze; when he is ill, he visits him; when he is absent, he wishes him well; when he is present and he meets him, he greets him with salam; when he invites him, he accepts; and when he dies, he follows his funeral."
Ahmad recorded it, and its chain is hasan (good).

A man from Banu Salit narrates: I came to the Prophet (peace and blessings be upon him) while he was among a crowd of people, and I heard him (peace and blessings be upon him) say: "A Muslim is the brother of a Muslim; he does not wrong him and he does not forsake him, and taqwa (God-consciousness) is here." The narrator Hammad says: the Prophet (peace and blessings be upon him) said this pointing with his blessed hand toward his chest.
Ahmad recorded it with several chains, and its chain is hasan (good); Abu Ya'la also recorded something similar.

Abd al-Rahman bin Ziyad bin An'um narrates: I heard my father say: "Once, during a sea expedition, they gathered their companions and invited Sayyiduna Abu Ayyub al-Ansari (may Allah be pleased with him) as well. The narrator says: When the food was ready, we sent word to Sayyiduna Abu Ayyub al-Ansari (may Allah be pleased with him). Sayyiduna Abu Ayyub al-Ansari (may Allah be pleased with him) came and said: When you invited me, I was (voluntarily) fasting, but it was binding upon me to accept your invitation, for I heard the Prophet (peace and blessings be upon him) say: "A Muslim owes his Muslim brother six binding rights; whoever abandons any one of them has abandoned a binding right: when he invites him, he should go; when he meets him, he should greet him with salam; when he sneezes, he should respond to his sneeze; when he is ill, he should visit him; when he dies, he should follow his funeral; and when he seeks his sincere counsel, he should counsel him sincerely." The narrator says: Among us there was a man who had a humorous nature, and there was a man who was in charge of our expenses. The humorous man said to the one who prepared the food: "May Allah Almighty reward you with good and grant you goodness." When he said this to the other man many times, the other man became angry and began to abuse him. The humorous man said: "O Sayyiduna Abu Ayyub, what is your view about this: I said to a man, 'May Allah Almighty reward you with good,' and he became angry and began to abuse me?" Sayyiduna Abu Ayyub (may Allah be pleased with him) said: "We used to say: whoever is not suited by good is suited by evil; so try the opposite with him." Then when the other man came, the humorous man said to him: "May Allah Almighty repay you with evil and give you hardship." The man laughed, was pleased and said: "You never give up your joking in any situation." The humorous man said: "May Allah Almighty reward Sayyiduna Abu Ayyub al-Ansari (may Allah be pleased with him) with good; he told me to say this."
Al-Tabarani recorded it. The narrator Abd al-Rahman was declared thiqah (trustworthy) by Yahya al-Qattan and others, while a group declared him da'if (weak); its remaining narrators are thiqat (trustworthy).

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him): the Prophet (peace and blessings be upon him) said: "A believer has six rights over another believer: when he meets him, he greets him with salam; when he sneezes, he responds to his sneeze; when he invites him, he accepts the invitation; when he is ill, he visits him; when he dies, he attends his funeral; and when he is absent, he wishes him well."

In one narration the words are: "When he invites him, he should accept, even if he invited him to (an animal's) trotter."
Al-Tabarani recorded it in al-Mu'jam al-Awsat with two chains, the narrators of one of which are thiqat (trustworthy).

It is narrated from Sayyiduna Wathilah bin al-Asqa' (may Allah be pleased with him): I heard the Prophet (peace and blessings be upon him) say: "The blood (that is, the life), honour and wealth of a Muslim are sacred to another Muslim. A Muslim is the brother of a Muslim; he does not wrong him and he does not forsake him. Taqwa (God-consciousness) is here." The narrator says: the Prophet (peace and blessings be upon him) said this pointing with his hand toward his heart, (and then he said:) "It is enough evil for a person that he looks down on his Muslim brother." (Allamah al-Haythami says:) I say: The author of al-Atraf attributed an abridged form of this narration to Abu Dawud, in a recension other than the one transmitted by al-Lu'lu'i.
Ahmad and al-Tabarani recorded it, and its narrators are thiqat (trustworthy).

Ubaydullah bin Ziyad al-Hadrami narrates: Once Malik bin Dinar met Salim bin Abdullah bin Umar bin al-Khattab, who at that time was riding a donkey whose ears were drooping; its saddle was in poor condition, and his clothes were shabby too. Salim asked him: "Where are you from?" He told him: "From you people, and from some of your mawali (clients)." Then he said: "My father narrated this hadith to me from the Prophet (peace and blessings be upon him); he (peace and blessings be upon him) said: 'A Muslim is the brother of a Muslim; he does not let him be disgraced, he does not betray him, and he does not abandon him in any calamity that befalls him. If the best of the Arabs and the mawali perish while they love one another, they will have no escape from that; and if the worst of the two groups perish because of hating one another, they will have no escape from that.'"
Al-Tabarani recorded it, and its chain is jayyid (good).

Sayyiduna Abdullah (may Allah be pleased with him) says: "A Muslim has six rights over another Muslim in kindness: when he meets him, he greets him with salam; when he calls him, he answers him; when he sneezes, he responds to his sneeze; when he dies, he attends his funeral; he wishes him well in his absence; and he loves for him what he loves for himself."
Al-Tabarani recorded it and said: Abu Ja'far al-Farra' did not transmit it as marfu', while Abu Ishaq al-Sabi'i transmitted it as marfu'; but he did not give its chain up to Abu Ishaq al-Sabi'i. Its narrators are thiqat (trustworthy).

Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates: "The Prophet (peace and blessings be upon him) asked about a man, saying: 'Who knows him?' One of those present said: 'I do.' The Prophet (peace and blessings be upon him) asked: 'What is his name?' He replied: 'I do not know.' The Prophet (peace and blessings be upon him) asked: 'What is his father's name?' He replied: 'I do not know.' The Prophet (peace and blessings be upon him) said: 'This is not acquaintance until you know his name, his father's name and the name of his tribe; if he falls ill, you visit him, and if he dies, you follow his funeral.'"
Al-Tabarani recorded it; its chain contains a narrator, Amr bin Dinar, the steward of the family of al-Zubayr, who is matruk (abandoned).