What is the ruling for a woman whose husband had intercourse with her during her postnatal bleeding period?

It is prohibited for a man to have intercourse with his wife during menstruation or postnatal bleeding and it is prohibited for her to obey him if he attempts this. If it does occur, then they must repent by regretting the action, intending never to repeat it, asking God abundantly for His forgiveness, and by performing righteous deeds especially giving alms.

And God Almighty knows best.