My father رحمه الله narrated to me, saying that ʿAlī b. Ibrāhīm b. Hāshim narrated to him among others, from his father, from al-Ḥusayn b. Yazīd, from Ibn Abī ʿUmayr, from Hishām b. al-Ḥakam, from Abī ʿAbd Allāh عليه السلام, from his forefathers, from Amīr al-Muʾminīn عليهم السلام, who said that the Messenger of Allāh صلى الله عليه وعلى آله has stated: “For everything there is an alms-tax, and the alms-tax of the body is fasting.”