Through this chain of narration, from Muhammad ibn Ya’qub, from Muhammad ibn Yahya, from Ahmad ibn Muhammad, from Ibn Faddal, from Ibn Bukayr, from Zurara, from Abu Abdullah عليه السلام, who said: Imam عليه السلام said: "The woman in a state of nifas (postnatal bleeding) refrains for the duration of her usual menstrual cycle and then adds two precautionary days."