9. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Ali ibn abu Hamzah who has narrated the following: “I once asked abu al-Hassan , about the case of a man who has made a will about thirty dinars to set free a man from our people but it cannot be done with that much. (The Imam) said, ‘A slave then must be bought from other people for this purpose.’”