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

Through this chain of narration, from Ali ibn Al-Hasan, from Amr ibn Uthman, from Al-Hasan ibn Mahbub, from Ali ibn Ri'ab, from Malik ibn A’yan, who said: I asked Abu Ja’far عليه السلام about a man approaching his wife while she is still experiencing postnatal bleeding. Imam عليه السلام said: "Yes, it is permissible after the number of days equal to her usual menstrual cycle has passed since the day she gave birth, and she adds a precautionary day. After that, there is no harm if her husband approaches her. He should instruct her to perform ghusl, and then he may approach her if he wishes."