“The Prophet ﷺ saw a man praying two Rak’ah after the Subh prayer and said, ‘Is the Subh prayer to be offered twice?’ The man said to him: ‘I did not pray the two Rak’ah before it, so I prayed them (now).’ The Messenger of Allah ﷺ remained silent.”  

رَأَى النَّبِيُّ ﷺ رَجُلاً يُصَلِّي بَعْدَ صَلاَةِ الصُّبْحِ رَكْعَتَيْنِ فَقَالَ النَّبِيُّ ﷺ أَصَلاَةَ الصُّبْحِ مَرَّتَيْنِ؟ فَقَالَ لَهُ الرَّجُلُ إِنِّي لَمْ أَكُنْ صَلَّيْتُ الرَّكْعَتَيْنِ اللَّتَيْنِ قَبْلَهَا فَصَلَّيْتُهُمَا قَالَ فَسَكَتَ النَّبِيُّ ﷺ  

It was narrated from Abu Hurairah that the Prophet ﷺ slept and missed the two Rak’ah before Fajr, so he made them up after the sun had risen.  

أَنَّ النَّبِيَّ ﷺ نَامَ عَنْ رَكْعَتَىِ الْفَجْرِ فَقَضَاهُمَا بَعْدَ مَا طَلَعَتِ الشَّمْسُ