سنن ابن ماجه

It was narrated that Ibn ‘Abbas said: “Good men among whom was ‘Umar bin Khattab, and the best of them in my view is ‘Umar, testified before me that the Messenger of Allah (ﷺ) said: ‘There is no prayer after Fajr until the sun has risen, and there is no prayer after the ‘Asr until the sun has set.’”