Sunan an-Nasa’i 4866
The Book of Oaths (qasamah), Retaliation and Blood Money
What Is Mentioned In The Book Of Retaliation From Al-Mujtaba Which Is Not Contained In The Sunan: Interpreting The Saying Of Allah, The Mighty And Sublime: "And Whoever Kills A Believer Intentionally, His Recompense Is Hell To Abide Therein"
It was narrated from Salim bin abi Ja'd that: 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 he could repent! I heard your Prophet (ﷺ) say; He (the victim) will come hanging onto his killer with his jugular veins flowing with blood and saying: "Ask him why he killed me." Then he said: "by Allah, Allah revealed it and never abrogated anything of it.