Maliks Muwatta Book 56, Hadith Number 27.
Section : The Legacy of the Prophet, may Allah Bless Him and Grant Him Peace.
Malik related to me from Ibn Shihab from Urwa ibn az-Zubayr from A’isha, umm al-muminin that when the Messenger of Allah, may Allah bless him and grant him peace, died, the wives of the Prophet, may Allah bless him and grant him peace, wanted to send Uthman ibn Affan to Abu Bakr as-Siddiq to ask him about their inheritance from the Messenger of Allah, may Allah bless him and grant him peace A’isha said to them, “Didn’t the Messenger of Allah, may Allah bless him and grant him peace, say, ‘No one inherits from us. What we leave is sadaqa.'”