I heard it from so many Companions of the Messenger of Allah ﷺ and one among them is 'Umar b. Khattab, and he is most dear to me among them that the Messenger of Allah ﷺ prohibited observing of prayer after the dawn prayer till the sun rose and after the 'Asr till the sun set.  

سَمِعْتُ غَيْرَ وَاحِدٍ مِنْ أَصْحَابِ رَسُولِ اللَّهِ ﷺ مِنْهُمْ عُمَرُ بْنُ الْخَطَّابِ وَكَانَ أَحَبَّهُمْ إِلَىَّ أَنَّ رَسُولَ اللَّهِ ﷺ نَهَى عَنِ الصَّلاَةِ بَعْدَ الْفَجْرِ حَتَّى تَطْلُعَ الشَّمْسُ وَبَعْدَ الْعَصْرِ حَتَّى تَغْرُبَ الشَّمْسُ  

"I heard more than one of the Companions of the Prophet ﷺ - including 'Umar who was one of the dearest of them to me - that the Messenger of Allah ﷺ forbade praying after Fajr until the sun had risen, and praying after 'Asr until the sun had set."  

سَمِعْتُ غَيْرَ وَاحِدٍ مِنْ أَصْحَابِ النَّبِيِّ ﷺ مِنْهُمْ عُمَرُ وَكَانَ مِنْ أَحَبِّهِمْ إِلَىَّ أَنَّ رَسُولَ اللَّهِ ﷺ نَهَى عَنِ الصَّلاَةِ بَعْدَ الْفَجْرِ حَتَّى تَطْلُعَ الشَّمْسُ وَعَنِ الصَّلاَةِ بَعْدَ الْعَصْرِ حَتَّى تَغْرُبَ الشَّمْسُ