"The Messenger [SAW] said: 'If two Muslims meet (and fight) with their swords and one of them kills the other, the killer and the slain will both be in Hell.'"

"I heard Abu Al-Ahwas (narrate) that 'Abdullah said: 'Defaming a Muslim is evildoing and fighting him is Kufr.'" So Aban said to him: "O Abu Ishaq! You heard it only from Abu Al-Ahwas?" He said: "Rather, I heard it from Al-Aswad and Hubairah."

"'Abdullah said: 'Defaming a Muslim is evildoing and fighting him is Kufr.'"

"The Messenger of Allah [SAW] said: 'Whoever fights for a cause that is not clear, advocating tribalism, getting angry for the sake of tribalism, then he has died a death of Jahiliyyah.'"

"The Messenger of Allah [SAW] said: 'If a Muslim points a weapon at his fellow Muslim, then they are on the brink of Hell, and if he kills him, then they will both fall into it.'"

The Messenger of Allah [SAW] said: "Fighting a Muslim is Kufr and defaming him is evildoing."

"The Messenger of Allah [SAW] said: 'Defaming a Muslim is evildoing and fighting him is Kufr.'"

"The Messenger of Allah [SAW] said: 'Whoever parts from obedience, and splits away from the Jama'ah and dies, then he has died a death of Jahiliyyah. Whoever rebels against my Ummah, killing good and evil people alike, and does not try to avoid killing the believers, and does not pay attention to those who are under a covenant, then he is not of me. Whoever fights for a cause that is not clear, advocating tribalism, getting angry for the sake of tribalism, and he is killed, then he has died a death of Jahiliyyah.'"

The Prophet [SAW] said: "If two Muslims confront each other with swords and one of them kills the other, they will both be in Hell."

The Prophet [SAW] said: "If two Muslims confront each other with swords, each of them wanting to kill the other, they will both be in Hell." It was said to him: "O Messenger of Allah, (we understand about) the killer, but what about the one who is killed?" He said: "He was determined to kill his companion."

"I heard the Messenger of Allah [SAW] say: 'If two Muslims confront each other with their swords and one of them kills the other, both the killer and the slain will be in Hell.'" They said: "O Messenger of Allah, (we understand about) the killer, but what about the one who is killed?" He said: "He wanted to kill his companion."

The Prophet [SAW] said: "Do not revert to disbelievers after I am gone, striking the necks of one another (killing one another)."

"The Messenger of Allah [SAW] said: 'Do not revert to disbelievers after I am gone, striking the necks of one another (killing one another). No man is to be punished for the sins of his father, or the sins of his brother.'"

The Messenger of Allah [SAW] said: "Do not revert to disbelievers after I am gone." It is Mursal.

During the Farewell Pilgrimage, the Messenger of Allah [SAW] asked the people to be quiet and listen, and said: "Do not revert to disbelievers after I am gone, striking the necks of one another (killing one another)."

"The Messenger of Allah [SAW] said to me: 'Ask the people to be quiet and listen.' Then he said: 'I do not want to see you after I am gone reverting to disbelievers, striking the necks of one another (killing one another).'"

"I used to wish that I could meet a man among the Companions of the Prophet [SAW] and ask him about the Khawarij. Then I met Abu Barzah on the day of 'Id, with a number of his companions. I said to him: 'Did you hear the Messenger of Allah [SAW] mention the Khawarij?' He said: 'Yes. I heard the Messenger of Allah [SAW] with my own ears, and saw him with my own eyes. Some wealth was brought to the Messenger of Allah [SAW] and he distributed it to those on his right and on his left, but he did not give anything to those who were behind him. Then a man stood behind him and said: "O Muhammad! You have not been just in your division!" He was a man with black patchy (shaved) hair, wearing two white garments. So Allah's Messenger [SAW] became very angry and said: "By Allah! You will not find a man after me who is more just than me." Then he said: "A people will come at the end of time; as if he is one of them, reciting the Qur'an without it passing beyond their throats. They will go through Islam just as the arrow goes through the target. Their distinction will be shaving. They will not cease to appear until the last of them comes with Al-Masih Ad-Dajjal. So when you meet them, then kill them, they are the worst of created beings."

"Defaming a Muslim is evildoing and fighting him is Kufr." (Sahih Mawquf)

"Defaming a Muslim is evildoing and fighting him is Kufr." (Sahih Mawquf)

"I said to Hammad: 'I heard Mansur, and Sulaiman, and Zubaid narrating from Abu Wa'il, from 'Abdullah, that the Messenger of Allah [SAW] said: "Defaming a Muslim is evildoing and fighting him is Kufr." - Who are you worried about? Are you worried about Mansur? Are you worried about Zubaid? Are you worried about Sulaiman?' He said: 'No, but I am worried about Abu Wa'il.'"