It is narrated from Nudbah, the freed slave-woman of Sayyidah Maymunah (may Allah be pleased with her), the wife of the Prophet (peace and blessings be upon him), that she looked and saw that his (Ibn Abbas's, may Allah be pleased with them both) bed was set apart from the bed of his wife, the daughter of Mishrah. So she returned to Maymunah (may Allah be pleased with her) and told her the reply to her message, then said: I saw her bed set apart from his bed, so I think there is estrangement between the two of them. Maymunah (may Allah be pleased with her) said to her: Go back to the daughter of Mishrah, the wife of Ibn Abbas, and ask her about that. (Nudbah said:) So I went back and asked her, and she said: There is no estrangement between us; rather, when I menstruate, he moves his bed away from my bed. So Maymunah (may Allah be pleased with her) sent for Abdullah (bin Abbas) (may Allah be pleased with them both), became angry with him and said: O Abdullah! Do you turn away from the Sunnah of the Messenger of Allah (peace and blessings be upon him)? By Allah, one of his (peace and blessings be upon him) wives would have a cloth tied around her that reached the middle of her thighs, and still he (peace and blessings be upon him) would touch her body.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20391