It was narrated that Ibn 'Abbas said: Some righteous men, including ‘Umar - and the most righteous of them in my view was 'Umar - confirmed when I was present that the Messenger of Allah (ﷺ) ﷺ said: `There is no prayer after Fajr until the sun rises and there is no prayer after 'Asr until the sun sets.`
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا عَفَّانُ، حَدَّثَنَا هَمَّامٌ، حَدَّثَنَا قَتَادَةُ، حَدَّثَنِي أَبُو الْعَالِيَةِ، عَنِ ابْنِ عَبَّاسٍ، قَالَ شَهِدَ عِنْدِي رِجَالٌ مَرْضِيُّونَ فِيهِمْ عُمَرُ رَضِيَ اللَّهُ عَنْهُ وَأَرْضَاهُمْ عِنْدِي عُمَرُ رَضِيَ اللَّهُ عَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ لَا صَلَاةَ بَعْدَ الصُّبْحِ حَتَّى تَطْلُعَ الشَّمْسُ وَلَا صَلَاةَ بَعْدَ الْعَصْرِ حَتَّى تَغْرُبَ الشَّمْسُ.
sunnah.com