Yahya related to me from Malik from Nafi that Ubaydullah ibn Abdullah ibn Umar sent a question to A'isha asking her, "May a man fondle his wife when she is menstruating?" She replied, "Let her wrap her waist-wrapper around her lower part and then he may fondle her if he wishes."
Muwatta Malik Book 2, Hadith 96
← Previous Hadith Yahya related to me from Malik from Rabia ibn Abi Abd ar-Rahman that on one occasion A'isha, the wife of the Prophet, may Allah bless him and grant him peace, was sleeping with the Messenger of Allah, may Allah bless him and grant him peace, in one garment, when suddenly she jumped up sharply. The Messenger of Allah, may Allah bless him and grant him peace, said to her, "What's the matter with you? Are you losing blood?", meaning menstruating. She said, "Yes." He said, "Wrap your waist-wrapper tightly about you, and return to your sleeping- place."

Muwatta Malik Book 2, Hadith 95 Next Hadith → Yahya related to me from Malik that he had heard that Salim ibn Abdullah and Sulayman ibn Yasar were asked whether the husband of a menstruating woman could have sexual intercourse with her when she saw that she was pure but before she had had a ghusl. They said, "No, not until she has had a ghusl."

Muwatta Malik Book 2, Hadith 97