Husayn bin Abi al-Hurr (may Allah have mercy on him) said: My father Malik and my two paternal uncles, Qays and Ubayd, the sons of al-Khashkhash (may Allah be pleased with them), came to the Prophet (peace and blessings be upon him). A complaint had been made concerning them that the sons of their paternal uncle had committed some aggression. So he (peace and blessings be upon him) wrote this letter for them: "This is a letter from Muhammad, the Messenger of Allah (peace and blessings be upon him), to Malik, Ubayd and Qays of Banu al-Khashkhash: You are in safety; your blood and your wealth will remain secure. You cannot be punished for the deeds of others. Yes, you will be punished for whatever your own hands have taken part in."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنايات / 15901