Musnad Ahmad 626

Translation

✧ The Khawārij were mentioned, and he said, "Among them is a man with a maimed hand—or a defective hand, or a deformed hand. Were it not that you would become arrogant, I would tell you what Allah has promised through the tongue of Muḥammad ﷺ to those who kill them." I said, "Did you hear it from Muḥammad ﷺ ?" He said, "Yes, by the Lord of the Kaʿbah; yes, by the Lord of the Kaʿbah; yes, by the Lord of the Kaʿbah."

Grades by grader

Narrators

1. 1
   ʿAlī b. Abū Ṭālib

   One of the ten (promised Paradise)d. 40 AH
   عَلِيُّ بْنُ أَبِي طَالِبٍأحد العشرة
   عن
2. 2
   ʿAbīdah b. ʿAmr al-Salmānī

   a senior Successor, mukhaḍram, jurist, firm (thabt)d. 62 AH, or 63 AH, or 72 AH, or 73 AH, said by al-Tirmidhī and Qaʿnab b. al-Muḥarrar, or 74 AH, also said 76 AH, Ibn Ḥajar said in al-Taqrīb: the correct view is that he died before 70 AH, Mughulṭāy said in al-Ikmāl: the most correct regarding his death is 74 AH
   عَبِيدَةَتابعي كبير ، مخضرم ، فقيه ثبت
   عن
3. 3
   Muḥammad b. Sīrīn

   Trustworthy (thiqah), reliable (thabt), devout (ʿābid), of great standing; he did not permit narration by meaning.d. 110 AH
   مُحَمَّدٍثقة ثبت عابد كبير القدر ، كان لا يرى الرواية بالمعنى
   عن
4. 4
   Ayyūb al-Sakhtiyānī

   Trustworthy (thiqah), firmly reliable (thabt), an authority (ḥujjah), one of the leading jurists and devout worshippersd. 130 AH, or 131 AH, or 132 AH, also said: 124 AH, also said: 125 AH, also said: 129 AH
   أَيُّوبُثقة ثبت حجة ، من كبار الفقهاء العباد
   حدثنا
5. 5
   Ismāʿīl

   trustworthy, a memorizer (thiqah ḥāfiẓ)d. 193 AH, or 194 AH
   إِسْمَاعِيلُثقة حافظ
   حدثنا
6. 6
   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.