Chapter on Itikaf and What Fasting Is Obligatory in It

Ali ibn al-Hasan, from Muhammad ibn Ali, from Abu Jamilah, from Abd al-Rahman ibn al-Hajjaj; and Muhammad ibn Yaqub, from Muhammad ibn Ismail, from al-Fadl ibn Shadhan, from Safwan ibn Yahya, from Abd al-Rahman ibn al-Hajjaj, from Abu Abdillah عليه السلام, peace be upon him: Imam عليه السلام said: “If the one observing seclusion for worship (al-mutakif) becomes ill, or the woman observing seclusion for worship (al-mutakifah) menstruates, then he comes to his house, then he repeats it when he recovers, and he fasts.”