Hadith No: 1
Al-Shafi'i - Kitab al-Um - Kitab Jarah al-Umad - Al-Jama'ee Ijab al-Qisas fi al-Umud
Volume: (6) - Page Number: (4)
- Abu Zakariya and Abu Bakr both told us, saying: Abu al-Abbas narrated to us, informing us that al-Rabi' narrated to him, that al-Shafi'i narrated to him, that Ibn Uyayna narrated to him from Muhammad ibn Ishaq, who said: I said to Abu Ja'far Muhammad ibn Ali: What was in the scroll that was in the possession of the Messenger of Allah (peace be upon him and his holy progeny)? He said: It contained, "May Allah curse the killer who is not killed and the striker who is not struck," and "Whoever takes a position other than that of his benefactor has disbelieved in what Allah revealed to Muhammad (peace be upon him and his holy progeny)."

---

Reference: Kitaab al-Umm Book 6

Hadith No: 2
Al-Shafi'i - Kitab al-Musnad - And from the Book of Jarh al-Umd
Volume: (1) - Page Number: (198)
- Ibn Uyaynah narrated to us from Muhammad ibn Ishaq, who said: I said to Abu Ja'far Muhammad ibn Ali, "What was in the authentic narration that was in the scabbard of the sword of the Messenger of Allah (peace be upon him and his holy progeny)?" He said: It contained: 'May Allah curse the killer who kills not his own killer, and the striker who strikes not his own striker.' And whoever takes a guardian other than his guardian of blessings has disbelieved in what Allah has revealed to Muhammad (peace be upon him and his holy progeny)."

---

Reference: Musnad al-Shaafe'i Book 1

Hadith No: 3
Al-Bayhaqi - Sunan al-Kubra - Book of Injuries (Transgressions)
Collection of Chapters on the Prohibition of Killing, Whom Retribution Is Obligatory Upon, and Whom It Is Not
Chapter on Making Retribution Mandatory on the Killer Alone
Volume: (8) - Page Number: (49)
15895 - Abu Zakariya and Abu Bakr both narrated to us, saying: Abu al-Abbas narrated to us, saying: Al-Rabi' narrated to us, saying: Al-Shafi'i narrated to us, saying: Ibn Uyainah narrated to us, from Muhammad ibn Ishaq, who said: I said to Abu Ja'far Muhammad ibn Ali: What was in the scroll that was in the possession of the Messenger of Allah (peace be upon him and his holy progeny)? He said: It contained: "May Allah curse the killer and those who are not killed, the one who strikes and those who do not strike." And whoever takes on a responsibility other than that of his benefactor has disbelieved in what Allah revealed to Muhammad (peace be upon him and his holy progeny).

---

Reference: Al-Sunan al-Kubra Book 8

Hadith No: 4
Al-Bayhaqi - Ma'rifat al-Sunan wa al-Athar
Kitab al-Jarh - Jam' Ijab al-Qisas fi al-'Umud
Volume: (12) - Page Number: (13)
15660 - And with this chain of narration: He informed us, al-Shafi'i informed us, Ibn Uyayna from Muhammad ibn Ishaq, who said: I said to Abu Ja'far ibn Ali: What was in the scroll that was in the possession of the Messenger of God (peace be upon him and his holy progeny)? He said: It contained: "May Allah curse the killer who does not avenge his victim and the attacker who does not defend his assailant," and "Whoever takes on a role other than that of his benefactor has disbelieved in what was revealed to Muhammad."

---

Reference: Ma'refah al-Sunan Wa Al-Aasaar Book 12