It is narrated from Hazrat Nafi that Sayyiduna Abdullah bin Umar (may Allah be pleased with them) sent a man to Sayyidah Aisha (may Allah be pleased with her) and asked her, "May a man have intercourse with his wife during her menstruation?" Sayyidah Aisha (may Allah be pleased with her) replied: "He should tie a lower garment around the lower part of her body, then if he wishes, he may have intercourse with her."
Related hadith on this topic