'Aishah (May Allah be pleased with her) reported:
The Prophet (ﷺ) never omitted four Rak'ah prayer before the Zuhr prayer and two Rak'ah prayers before dawn (Fajr) prayer.[Al- Bukhari]. (RU)
App reference (RU): Book 9, Hadith 110 (RU)
Arabic/English book reference (RU): Book 9, Hadith 1100 (RU)