Ja'far bin Amr bin Umayyah al-Damri (may Allah have mercy on him) narrates: I and Ubaydullah bin Adi bin al-Khiyar (may Allah have mercy on him) set out (on a journey) until we reached Hims. Then we came to Sayyiduna Wahshi bin Harb (may Allah be pleased with him), and he narrated to us, saying: "I came to the Messenger of Allah (peace and blessings be upon him) and bore the testimony of truth (i.e. accepted Islam). He (peace and blessings be upon him) said: 'O Wahshi, sit and tell me how you killed Sayyiduna Hamzah (may Allah be pleased with him).' So I told him (peace and blessings be upon him) (the whole story), and he (peace and blessings be upon him) said: 'Keep your face hidden from me, so that I do not see you (in front of me).'"
No one narrated this hadith from Abdullah bin al-Fadl (may Allah have mercy on him) except Muhammad bin Ishaq (may Allah have mercy on him) and Abd al-Aziz bin al-Majishun (may Allah have mercy on him).
Hadith Referenceالمعجم الأوسط / باب الألف / 1800
Hadith Takhrij«أخرجه البخاري فى «صحيحه» برقم: 4072، وابن حبان فى «صحيحه» برقم: 7016، 7017، والبيهقي فى «السنن الكبرى» برقم: 18258، وأحمد فى «مسنده» برقم: 16324، 16325، والطيالسي فى «مسنده» برقم: 1410، والطبراني فى «الكبير» برقم: 2947، 2949، 2950»