Sahih Bukhari | Volume 8 | Hadith Number 722

Narrated by 'Urwa
'Aisha said, "When Allah's Apostle died, his wives intended to send 'Uthman to Abu Bakr asking him for their share of the inheritance." Then 'Aisha said to them, "Didn't Allah's Apostle say, 'Our (Apostles') property is not to be inherited, and whatever we leave is to be spent in charity?'"