The Source of Traditions on Imam al-Riḍā (Vol 2) · Hadith 122 (#Ḥadīth #122)

122 - وَبِهذَا الإِسنادِ عَنْ عَلِىِّ بْنِ أَبِي طالِبٍ عَلَيْهِالسَّلامُ قالَ: وُرِثتُ عَنْ رَسُولِ اللَّهِ صَلَّى اللهُ عَلَيْهِ وَآلِهِ كتابَيْنِ: كِتاب اللَّهِ وَكِتابي فِي قِرابِ سَيفي، وقِيلَ: يا أَمِيرِ الْمُؤْمِنين وَمَا الْكِتابُ الَّذِي فِي قِرابِ سَيفِكَ؟ قالَ: مَن قَتَلَ غَيْرَ قاتِلِهِ أَوْ ضَرَبَ غَيْرَ ضارِبِهِ فَعَلَيْهِ لَعْنَةُ اللَّهِ.

31-122 According to the same documentation, Ali ibn Abi Talib said, “I have inherited two books from God’s Prophet (S). One of them is God’s Book (the Qur’an), and the other one is the book I have put in a leather cover and hung from my sword’s scabbard.” They asked Ali , “O Commander of the Faithful! What is the book in your sword’s scabbard?” He replied, “In it is written, ‘May God’s Curse be upon whoever kills anyone other than his own killer, or hits anyone other than the one who hits him.’”

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).