Sahih Muslim Book - 6, Hadith - 1921

وَحَدَّثَنَا دَاوُدُ بْنُ رُشَيْدٍ وَإِسْمَاعِيلُ بْنُ سَالِمٍ جَمِيعًا عَنْ هُشَيْمٍ - قَالَ دَاوُدُ حَدَّثَنَا هُشَيْمٌ - أَخْبَرَنَا مَنْصُورٌ عَنْ قَتَادَةَ قَالَ أَخْبَرَنَا أَبُو الْعَالِيَةِ عَنِ ابْنِ عَبَّاسٍ قَالَ سَمِعْتُ غَيْرَ وَاحِدٍ مِنْ أَصْحَابِ رَسُولِ اللَّهِ -صلى الله عليه وسلم- مِنْهُمْ عُمَرُ بْنُ الْخَطَّابِ وَكَانَ أَحَبَّهُمْ إِلَىَّ أَنَّ رَسُولَ اللَّهِ -صلى الله عليه وسلم- نَهَى عَنِ الصَّلاَةِ بَعْدَ الْفَجْرِ حَتَّى تَطْلُعَ الشَّمْسُ وَبَعْدَ الْعَصْرِ حَتَّى تَغْرُبَ الشَّمْسُ.

It was narrated that Ibn 'Abbas said: "I heard more than one of the companions of the Messenger of Allah (s.a.w) - including 'Umar bin Al-Khattab, who was the dearest of them to me - say that the Messenger of Allah (s.a.w) forbade prayers after the Fajr prayer until the sun had risen and after 'Asr until the sun had set."