Sunan an-Nasa'i

It was narrated that Ash'ath bin Abi Ash-Sha'tha, said: "I heard Al-Aswad bin Hilal narrate from a man of Banu Tha'labah bin Yarbu' that some people from Banu Tah'labah came to the Prophet and a man said: "O Messenger of Allah, these are Banu Tha'labah bin Yarbu'who killed so and so' - a man from among the companions of the Prophet. The Prophet said: “No soul is affected by the sin of another”