“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.’”
لاَ صَلاَةَ بَعْدَ الْفَجْرِ حَتَّى تَطْلُعَ الشَّمْسُ وَلاَ صَلاَةَ بَعْدَ الْعَصْرِ حَتَّى تَغْرُبَ الشَّمْسُ