Sayyiduna Abdur Rahman bin Abu Bakrah (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) delivered a sermon to us on the Day of Sacrifice (the 10th of Dhul-Hijjah) and said: "What day is this?" We said: Allah and His Messenger know best. He remained silent until we thought he would give it another name. Then he asked: "Is it not the Day of Sacrifice?" We said: Yes! He asked: "What month is this?" We said: Allah and His Messenger know best. He remained silent until we thought he would give it another name. Then he asked: "Is it not Dhul-Hijjah?" We said: Yes! He asked: "What city is this?" We said: Allah and His Messenger know best. He remained silent until we thought he would give it another name. Then he asked: "Is it not (the sacred city of) Makkah?" We said: Yes! The Messenger of Allah (peace and blessings be upon him) said: "Indeed, Allah has made your blood and your wealth sacred to you, just as this day of yours, this month of yours, and this city of yours are sacred, and this sanctity remains until the Day of Resurrection. Have I conveyed (the message of Allah)?" The noble Companions (may Allah be pleased with them) said: Yes! He said: "O Allah! Bear witness. Let those present convey this message to those who are absent, for sometimes the one to whom the message is conveyed remembers it better than the one who heard it. Beware! Do not turn back to disbelief after me, striking the necks of one another."

Sayyiduna Abdullah bin Amr bin al-As (may Allah be pleased with them both) narrates that the Messenger of Allah (peace and blessings be upon him) said: Whoever kills a Mu'ahid (a non-Muslim with whom there is a peace treaty), he will not even smell the fragrance of Paradise, though its fragrance can be perceived from a distance of forty years. Marwan, the narrator, has narrated it in the same way.

Sayyiduna Abu Bakrah (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: Whoever kills a Mu'ahid (a non-Muslim under Muslim protection) without reason, Allah will make the fragrance of Paradise forbidden for him.

Abu Umamah bin Sahl says that when Sayyiduna Uthman (may Allah be pleased with him) was besieged (imprisoned) in his house, I was with him. There was an entrance to the house such that whoever entered through it could hear the conversations taking place in the Balat (a place in Madinah). Sayyiduna Uthman (may Allah be pleased with him) entered through it, and when he came out, his color had changed. He said: They have just now threatened to kill me. We said: O Leader of the Believers! Allah Almighty will suffice you against them. He said: Why do they want to kill me? I heard the Messenger of Allah (peace and blessings be upon him) say: It is only permissible to kill a Muslim for three reasons: one who becomes a disbeliever after accepting Islam, one who commits adultery despite being married, and one who kills someone unjustly. By Allah! I have never committed adultery, neither in the time of ignorance nor in Islam, and since Allah Almighty has blessed me with guidance (Islam), I have never even thought of changing my religion, nor have I killed anyone, so why do they want to kill me?

Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates that a Jew crushed the head of a girl with a stone and took off her jewelry. The people caught him, and there was still some life left in her. They took her around (and began asking), "Is this the person? Is this the person (who attacked you)?" until she indicated towards the Jew. So they caught him, and the Jew confessed to the crime. Then, by the order of the Prophet (peace and blessings be upon him), his head was also crushed with a stone.

Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates that a Jew crushed the head of a girl between two stones. She was asked, "Who did this to you? Was it so-and-so or so-and-so?" Until the Jew's name was mentioned, and she acknowledged it. So, by the order of the Prophet (peace and blessings of Allah be upon him), his head was also crushed with a stone.

Sayyiduna Shaddad bin Aws (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: When you kill, then kill in the best manner. In the narration of Ahmasi, it is further added: When you slaughter, then slaughter in the best manner.

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: The believers kill in the best and most cautious manner.

Sayyiduna Anas (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) ordered retaliation for a tooth and said: The command of retaliation is in the Book of Allah.

Zadhan says: I was sitting with Abdullah bin Umar (may Allah be pleased with them) when he called one of his slaves and set him free. Then he said: I did not even get as much reward for freeing him as this, and he picked up something from the ground with his hand. I heard the Messenger of Allah (peace and blessings be upon him) say: Whoever imposes a punishment on his slave for something he did not commit, or slaps him, then its expiation is that he should set him free.