It wasnarrated from Abu Sa'eed Al-Khudri that the Prophet (ﷺ)said:
"There is no prayer after the 'Asr until the sun has set, andthere is no prayer after the Fajr until the sun has risen." (DE)
English reference (DE): Vol. 1, Book 5, Hadith 1249 (DE)
Arabic reference (DE): Book 5, Hadith 1307 (DE)