Malik related to me from Nafi that Abdullah ibn Umar said, "The idda of an umm walad when her master dies is one menstrual period."
Muwatta Malik Book 29, Hadith 102
← Previous Hadith Yahya related to me from Malik that Yahya ibn Said said that he had heard al-Qasim ibn Muhammad say that Zayd ibn Abd al-Malik separated some men and their wives who were slave-girls who had borne children to men who had died, because they had married them after one or two menstrual periods. He separated them until they had done an idda of four months and ten days. Al-Qasim ibn Muhammad said, "Glory be to Allah! Allah says in His Book, 'Those of you who die, leaving wives, they are not wives.' "

Muwatta Malik Book 29, Hadith 101 Next Hadith → Malik said, "This is what is done among us."

Malik added, "If she does not have a menstrual period, her idda is three months."

Muwatta Malik Book 29, Hadith 103