ل ا تُعاشِرِ امْرَأتَكَ فِي فَترَةِ حَيضِها الشَّهرِيَّةِ إذْ تَكُونُ نَجِسَةً.
‘Also you shall not approach a woman to uncover her nakedness as long as she is in her customary impurity.