And from him, from Ya'qub ibn Yazid, from Ali ibn Ja'far, from al-Hakam ibn Buhlul, from Abu Hammam, from al-Hasan ibn Ziyad, from Abu Abdillah عليه السلام, peace be upon him, who said: Imam al-Sadiq عليه السلام said: "A man came to the Commander of the Believers عليه السلام, peace be upon him, and said: ‘O Commander of the Believers عليه السلام, I have acquired wealth whose lawful from its unlawful I do not know.’ Imam Ali عليه السلام said: “Take out the fifth (khums) from that wealth, for Allah سبحانه وتعالى, Exalted is He سبحانه وتعالى, has been pleased with the fifth (khums) from wealth, and avoid what its owner used to do."