Musnad Ahmad 19590

Translation

✧ A brother of Abu Musa was hastening into turmoil, and he kept forbidding him but he did not desist. He said: I thought that a little of my admonition, or he said a little of admonition, would suffice you, but now I see otherwise. The Messenger of Allah ﷺ said: When two Muslims face each other with their swords and one of them kills the other, the killer and the slain are both in the Fire. It was said: This is the killer, but what about the slain? He said: He had intended to kill his companion.

Grades by grader

Other narrations of this report

Sahih al-Bukhari 6875

Narrators

1. 1
   Abū Mūsá al-Ashʿarī

   a well-known Companiond. 42 AH, or 44 AH, or 50 AH, or 52 AH, or 53 AH, also said 49 AH, also said 51 AH
   أَبُو مُوسَى الْأَشْعَرِيُّصحابي مشهور
   فقال
2. 2
   al-Ḥasan al-Baṣrī

   Trustworthy (thiqah), a jurist (faqīh), virtuous and well known; he would often narrate with omission of the Companion (irsāl) and practiced concealment (tadlīs)d. 110 AH
   الْحَسَنِثقة فقيه ، فاضل مشهور ، وكان يرسل كثيرا ويدلس
   عن
3. 3
   Yūnus

   Trustworthy (thiqah), firmly reliable (thabt), virtuous, scrupulous.d. 138 AH, or 139 AH, or 140 AH
   يُونُسَثقة ثبت فاضل ورع
   عن
4. 4
   Ismāʿīl

   trustworthy, a memorizer (thiqah ḥāfiẓ)d. 193 AH, or 194 AH
   إِسْمَاعِيلُثقة حافظ
   حدثنا
5. 5
   Aḥmad b. Ḥanbal

   Trustworthy (thiqah), a memorizer (ḥāfiẓ), a jurist (faqīh), an authority (ḥujjah).d. 241 AH, Abū Umayyah Muḥammad b. Ibrāhīm al-Ṭarsūsī said: 242 AH, and no one followed him in his view
   أحمد بن حنبلثقة حافظ فقيه حجة

Who each narrator was and how reliable, from hdith.com

Latin names and English verdicts with a dotted underline are machine translations, not reviewed.