What is the ruling for a woman whose post-natal bleeding stops before forty days?

Question:
A woman gave birth and did not complete the forty days, and no blood is coming from her anymore. Is she required to enter the Haram, and is it permissible for her husband to have intercourse with her?

Answer:
If the blood stops during the forty days, she performs the full ritual bath, fasts, prays, and becomes lawful to her husband. If the blood returns at the end of the forty days, she sits [abstains]. She sits if the blood returns at the end of the forty days. The time when she became pure during the forty days is considered purity; she performs the full ritual bath, fasts, prays, and becomes lawful to her husband.