Chapter on the Rules of Menstruation, Istihadah, and Nifas, and Purification From Them

from Muhammad ibn Ya’qub, from Muhammad ibn Isma’il, from Al-Fadl ibn Shadhan, from Hammad ibn Isa and Ibn Abi Umayr, from Mu’awiyah ibn Ammar, from Abu Abdullah عليه السلام, who said: Imam عليه السلام said: "The mustahadah (a woman experiencing irregular bleeding) observes her days of menstruation and does not pray during those days, nor is her husband allowed to approach her. Once her menstruation days pass, and if she sees that the blood soaks through the cotton pad, she must perform ghusl for Dhuhr and Asr - delaying one and performing the other promptly. She must also perform ghusl for Maghrib and Isha - delaying one and performing the other promptly. She must perform ghusl for Fajr as well. She should use a cotton pad, secure it, and keep her thighs pressed together. In the mosque, only her body outside the area of bleeding should remain exposed, and her husband must not approach her during the days of her menstrual cycle. If the blood does not soak through the cotton pad, she should perform wudu and can enter the mosque and pray each prayer with fresh wudu. In this case, her husband may approach her except during the days of her menstruation."