Sunan Ibn Majah, Chapter: The Chapters on Shares of Inheritance

that the Messenger of Allah (saw) stood up, on the day of the conquest of Makkah, and said: "A woman inherits from the blood money and wealth of her husband, and he inherits from her blood money and wealth, so long as one of them did not kill the other. If one of them killed the other deliberately, then he or she inherits nothing from the blood money or wealth. If one of them killed the other by mistake, he or she inherits from the other's wealth, but not from the blood money." Hasan