I heard ʿUrwa bin Az-Zubair talking to ʿUmar bin ʿAbdul ʿAziz during the latter's Governorship (at Medina), he said, "Al-Mughira bin Shuʿba delayed the ʿAsr prayer when he was the ruler of Al-Kufa. On that, Abu Masʿud. ʿUqba bin ʿAmr Al-Ansari, the grand-father of Zaid bin Hasan, who was one of the Badr warriors, came in and said, (to Al-Mughira), 'You know that Gabriel came down and offered the prayer and Messenger of Allah ﷺ prayed five prescribed prayers, and Gabriel said (to the Prophet ﷺ ), "I have been ordered to do so (i.e. offer these five prayers at these fixed stated hours of the day).  

لَقَدْ عَلِمْتَ نَزَلَ جِبْرِيلُ فَصَلَّى فَصَلَّى رَسُولُ اللَّهِ ﷺ خَمْسَ صَلَوَاتٍ ثُمَّ قَالَ هَكَذَا أُمِرْتَ كَذَلِكَ كَانَ بَشِيرُ بْنُ أَبِي مَسْعُودٍ يُحَدِّثُ عَنْ أَبِيهِ