[Machine] Regarding the man who steps on his wife while she has seen her period before she takes a ritual bath (ghusl), Al-Hasan said: "She is considered menstruating until she takes a bath, and he is required to perform the expiation (kaffarah), and he may not approach her until she takes a bath."
عَنِ الْحَسَنِ فِي الرَّجُلِ يَطَأُ امْرَأَتَهُ وَقَدْ رَأَتِ الطُّهْرَ قَبْلَ أَنْ تَغْتَسِلَ؟ قَالَ «هِيَ حَائِضٌ مَا لَمْ تَغْتَسِلْ وَعَلَيْهِ الْكَفَّارَةُ وَلَهُ أَنْ يُرَاجِعَهَا مَا لَمْ تَغْتَسِلْ»