"The Messenger of Allah [SAW] said: 'By the One in Whose Hand is my soul, killing a believer is more grievous before Allah than the extinction of the whole world.'"
"The Messenger of Allah [SAW] said: 'The first thing concerning which a person will be brought to account will be the Salah, and the first thing concerning which scores will be settled among the people, will be bloodshed."
The Messenger of Allah [SAW] said: "The first matter concerning which scores will be settled among the people on the Day of Resurrection will be bloodshed."
Chapter 2: The Gravity of the Sin of Shedding Blood - كتاب تحريم الدم
It was narrated that 'Amr bin Shurahbil said:
أَخْبَرَنَا أَحْمَدُ بْنُ حَرْبٍ، قَالَ حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الأَعْمَشِ، عَنْ أَبِي وَائِلٍ، عَنْ عَمْرِو بْنِ شُرَحْبِيلَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم
" أَوَّلُ مَا يُقْضَى فِيهِ بَيْنَ النَّاسِ يَوْمَ الْقِيَامَةِ فِي الدِّمَاءِ " .
"The Messenger of Allah [SAW] said: 'The first matter concerning which scores will be settled among the people on the Day of Resurrection will be bloodshed.'"
The Prophet [SAW] said: "A man will come, holding another man's hand, and will say: 'O Lord, this man killed me.' Allah will say to him: 'Why did you kill him?' He will say: 'I killed him so that the glory would be to you.' He will say: 'It is to Me.' Then (another) man will come holding another man's hand, and will say: 'This man killed me.' Allah will say to him: 'Why did you kill him?' He will say: 'So that the glory would be to so and so.' He will say: 'It is not to so and so,' and the burden of sin will be upon him."
"Jundab said: 'So and so told me that the Messenger of Allah [SAW] said: The slain will bring his killer on the Day of Resurrection and will say: Ask him why he killed me. He will say: I killed him defending the kingdom of so and so.'" Jundab said: "So be careful.'"
Ibn 'Abbas was asked about someone who killed a believer deliberately, then he repented, believed and did righteous deeds, and followed true guidance. Ibn 'Abbas said: "There is no way the repentance could avail him! I heard the Prophet [SAW] say: 'He (the victim) will come hanging onto his killer, with his jugular veins flowing with blood and saying: O Lord, ask him why he killed me. Then he said: By Allah, Allah revealed it and never abrogated anything of it.'"
"The people of Al-Kufah differed concerning this Verse: "And whoever kills a believer intentionally." So I went to Ibn 'Abbas and asked him, and he said: 'It was revealed among the last of what was revealed, and nothing of it was abrogated after that.'"
"I said to Ibn 'Abbas: 'Can a person, who killed a believer intentionally, repent?' He said: 'No.' I recited the Verse from Al-Furqan to him: 'And those who invoke not any other ilah (god) along with Allah, or kill such person as Allah has forbidden, except by right,' he said: 'This Verse was revealed in Makkah and was abrogated by a Verse that was revealed in Al-Madinah: 'And whoever kills a believer intentionally, his recompense is Hell.'"
"Abdur-Rahman bin Abi Laila told me to ask Ibn 'Abbas about two Verses: 'And whoever kills a believer intentionally, his recompense is Hell.' I asked him and he said: 'Nothing of this has been abrogated.' (And I asked him about the Verse): 'And those who invoke not any other ilah (god) along with Allah, or kill such person as Allah has forbidden, except by right,' he said: 'This was revealed concerning the people of Shirk.'"
Some people used to kill, and they did a great deal of it, and they used to commit adultery and they did a great deal of it, and they committed violations. They came to the Prophet [SAW] and said: "O Muhammad, what you say and call people to is good, if only you could tell us that there is any expiation for what we have done." Then Allah, the Mighty and Sublime, revealed: "And those who invoke not any other ilah (god) along with Allah up to for those, Allah will change their sins into good deeds," he said: "So Allah will change their Shirk into faith, and their adultery into chastity. And the Verse: "Say: O 'Ibadi (My slaves) who have transgressed against themselves (by committing evil deeds and sins)" was revealed.
Some of the people of Shirk came to Muhammad [SAW] and said: "What you say and call people to is good, if only you could tell us that there is any expiation for what we have done." Then the Verses: "And those who invoke not any other ilah (god) along with Allah, or kill such a person as Allah has forbidden, except by right." And "Say: O 'Ibadi (My slaves) who have transgressed against themselves (by committing evil deeds and sins)" were revealed.
The Prophet [SAW] said: "The slain will bring his killer on the Day of Resurrection with his forelock and his head in his hand, and with his jugular veins flowing with blood, and will say: 'O Lord, he killed me,' until he draws near to the Throne." They mentioned repentance to Ibn 'Abbas and he recited this Verse: "And whoever kills a believer intentionally, his recompense is Hell" He said: "It has not been abrogated since it was revealed; there is no way he could repent."
"This Verse - 'And whoever kills a believer intentionally, his recompense is Hell' - was revealed six months after the Verse which was revealed in Surat Al-Furqan."
"And whoever kills a believer intentionally, his recompense is Hell" that he said: "This Verse was revealed eight months after the Verse that is in Tabark Al-Furqan: "And those who invoke not any other ilah (god) along with Allah, or kill such person as Allah has forbidden, except by right."
"I heard Kharijah bin Zaid bin Thabit narrate that his father said: (The Verse) 'And whoever kills a believer intentionally, his recompense is Hell' was revealed and we became worried about it. Then the Verse in Al-Furqan 'And those who invoke not any other ilah (god) along with Allah, or kill such person as Allah has forbidden, except by right.' was revealed."
The Messenger of Allah [SAW] said: "Whoever comes worshipping Allah and not associating anything with Him, establishing Salah, paying Zakah and avoiding major sins, Paradise will be his." They asked him about major sins and he said: "Associating others with Allah, killing a Muslim soul, and fleeing (from the battlefield) on the day of the march."
Chapter 3: Mentioning the Major Sins - كتاب تحريم الدم
It was narrated that 'Ubaidullah bin Abi Bakr said:
أَخْبَرَنَا مُحَمَّدُ بْنُ عَبْدِ الأَعْلَى، قَالَ حَدَّثَنَا خَالِدٌ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ عُبَيْدِ اللَّهِ بْنِ أَبِي بَكْرٍ، عَنْ أَنَسٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم ح وَأَنْبَأَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا النَّضْرُ بْنُ شُمَيْلٍ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ عُبَيْدِ اللَّهِ بْنِ أَبِي بَكْرٍ، قَالَ سَمِعْتُ أَنَسًا، يَقُولُ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم
" الْكَبَائِرُ الشِّرْكُ بِاللَّهِ وَعُقُوقُ الْوَالِدَيْنِ وَقَتْلُ النَّفْسِ وَقَوْلُ الزُّورِ " .
"I heard Anas say: 'The Messenger of Allah [SAW] said: The major sins are: Associating others with Allah (Shirk), disobeying one's parents, killing a soul (murder) and speaking falsely.'"