Musannaf Ibn Abi Shayba 26:6

Abu Mu'awiyah narrated to us, from Muslim, from Masruq, that it was said to him: "Did Aisha have knowledge of the laws of inheritance (al-fara'id)?" He said: "Yes, by the One in Whose hand is my soul, I have seen the elders among the companions of Muhammad, may Allah bless him and grant him peace, asking her about the laws of inheritance."