Are prohibitions against marrying a female slave due to kinship or fosterage defects?
Chapter on Selling the Musarrah (Animal with milk retained in udder)
Al-Mughni
Book of Sales
Primary text
If a female slave is prohibited to the purchaser through lineage or fosterage, this is not a defect, because the prohibition does not relate to any flaw in the essential quality or value of the object itself; the prohibition is external to the property.