6. With this chain of narrators, from Hussain bin Sa’eed, from Hasan, son of the daughter of Ilyas, that he said: I heard al-Rida, peace be upon him, say: The Messenger of Allah, Allah’s blessings be upon him and his Family, said: May Allah curse the one who performs a sin or gives refuge to a sinner. I said: And what is the sin? He said: The one who murders.