Musannaf Ibn Abi Shayba 3:4968

Abu Bakr narrated to us, he said: Waki’ narrated to us, from Hisham ibn ‘Urwah, from his father, from ‘Aishah, who said: The Prophet (peace and blessings of Allah be upon him) never once abandoned the two rak’ahs after the ‘Asr prayer in my house.