Muhammad ibn Yaqub, from a number of our companions, from Ahmad ibn Muhammad, from al-Husayn ibn Said, from al-Qasim ibn Muhammad, from Ali ibn Abi Hamzah, from Abu Ibrahim عليه السلام, peace be upon him, who said: I (narrator) asked Imam عليه السلام about ‘a man who made binding upon himself the fasting of one month in Kufa, one month in Madinah, and one month in Mecca, because of a trial with which he was afflicted. It was decreed that he fasted one month in Kufa, and entered Madinah, so he fasted there eighteen days, but the camel-driver (al-jammal) did not stay for him (to finish his fasting).’ Imam عليه السلام said: He fasts what remains upon him when he reaches his town.