Hadith 915
It is narrated from Sayyiduna Amr bin Al-Hamq Al-Khuzai (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever considers someone trustworthy regarding his blood, but then that person kills him, then even if the slain was a disbeliever, I am free and dissociated from his killer."