كتاب 27
27  
Book 27
(27)
Chapter 27
(27)
باب 27
Muwatta Malik 1127
Malik said, "The generally agreed upon way of doing things among us is that maternal half-siblings do not inherit anything when there are children or grandchildren through sons, male or female. They do not inherit anything when there is a father or the father's father. They inherit in what is outside of that. If there is only one male or female, they are given a sixth. If there are two, each of them has a sixth. If there are more than that, they share in a third which is divided among them. The male does not have portion of two females. That is because Allah, the Blessed, the Exalted, says in His Book, 'If a man or woman has no direct heir, and he has a brother or sister, by the mother, each of them has a sixth. If there are more than two, they share equally in a third.' " (Sura 4 ayat 12).
Reference : Muwatta Malik 1127
In-book reference : Book 27, Hadith 35305
USC-MSA web (English) reference : Book 7, Hadith 1127
  (deprecated numbering scheme)