´It was narrated from 'Ata' bin Yazid that he heard Abu Sa'eed Al-Khudri say:` "I heard the Messenger of Allah (ﷺ) say: 'There is no prayer after Fajr until the sun has clearly risen, and no prayer after 'Asr until the sun has fully set.'"
Hadith ReferenceSunan an-Nasa'i / The Book of the Times (of Prayer) / Hadith: 568
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه