It was narrated that 'Aishah said:
"There are two prayers that the Messenger of Allah (ﷺ) never neglected to pray them in my house secretly nor publicly: Two Rak'ahs before Fajr and two Rak'ahs after 'Asr." (JA)
English reference (JA): Vol. 1, Book 6, Hadith 578 (JA)
Arabic reference (JA): Book 6, Hadith 584 (JA)