It was narrated that Al-Aswad said:
'Aishah said: "The Messenger of Allah (ﷺ) never entered upon me after 'Asr but he prayed them (the two Rak'ahs)." (PT)
English reference (PT): Vol. 1, Book 6, Hadith 576 (PT)
Arabic reference (PT): Book 6, Hadith 582 (PT)