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

And from him, from Amr ibn Uthman, from Hanan ibn Sadir, from his father, from Abu Ja’far عليه السلام, peace be upon him, who said: I (narrator) asked Imam عليه السلام about ‘fasting the day of Arafah’, And I asked: “May I be made your ransom, they claim that it is equal to fasting a year.” Imam عليه السلام said: “My father عليه السلام, peace be upon him, would not fast it.” I (narrator) asked: “And why is that?” Imam عليه السلام said: “Indeed, the day of Arafah is a day of supplication and asking, and I fear that it would weaken me from supplication, and I dislike fasting it, and I fear that Arafah may be the day of Adha, so it is not a day of fasting.”