Chapter on Categories of Fasting and the Explanation of All of Them with Clarification

Muhammad ibn Yaqub, from Ali ibn Ibrahim, from his father, from Nuh ibn Shuayb al-Naysaburi, from Yasin al-Darir, from Hariz, from Zurarah, from Abu Abdillah Imam Ja’far عليه السلام from his father, Imam al-Baqir عليه السلام, peace be upon them both: The Imams عليه السلام both said: “Do not fast the day of Ashura (tenth of Muharram), nor the day of Arafah in Mecca, nor in Madinah, nor in your homeland, nor in any city from among the cities.”