Muhammad ibn Yaqub, from a number of our companions, from Ahmad ibn Muhammad, from Ali ibn Ahmad ibn Ashyam, from Sulayman ibn Jafar al-Jafari, who said: I (narrator) asked Abu al-Hasan عليه السلام, peace be upon him, about ‘a man who has days from the month of Ramadan upon him, should he make them up separately?’ Imam عليه السلام said: “There is no harm in separating the making up of the month of Ramadan. The fasting that is not to be separated is only the expiation of zihar (unlawful pre-Islamic practice), the expiation of blood, and the expiation of an oath.”