Hadith 1154
´It was narrated that Qais bin ‘Amr said:` “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.”
Hadith 1155
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.