[Machine] The Prophet ﷺ passed by me while I was praying two units of prayer after the morning prayer. He asked, "What is this prayer?" I replied, "I did not pray the two units of the dawn prayer, so these are them." The Messenger of Allah ﷺ remained silent.
مَرَّ بِيَ النَّبِيُّ ﷺ وَأَنَا أُصَلِّي رَكْعَتَيْنِ بَعْدَ الصُّبْحِ فَقَالَ «مَا هَذِهِ الصَّلَاةُ؟» فَقُلْتُ إِنِّي لَمْ أَكُنْ صَلَّيْتُ رَكْعَتَي الْفَجْرِ فَهُمَا هَاتَانِ فَسَكَتَ رَسُولُ اللهِ ﷺ
The Messenger of Allah ﷺ saw a person praying after the congregational prayer at dawn was over. The Messenger of Allah ﷺ said: There are two rak'ahs of the dawn prayer (i.e. the prescribed rak'ahs). The man replied: I did not pray the two rak'ahs before the dawn prayer. Hence I offered them now. The Messenger of Allah ﷺ kept silent. (Using translation from Abū Dāʾūd 1267)
رَأَى النَّبِيُّ ﷺ رَجُلًا يُصَلِّي بَعْدَ صَلَاةِ الصُّبْحِ رَكْعَتَيْنِ فَقَالَ رَسُولُ اللهِ ﷺ أَصَلَاةُ الصُّبْحِ مَرَّتَيْنِ؟ فَقَالَ الرَّجُلُ إِنِّي لَمْ أَكُنْ صَلَّيْتُ الرَّكْعَتَيْنِ اللَّتَيْنِ قَبْلَهُمَا فَصَلَّيْتُهُمَا الْآنَ قَالَ فَسَكَتَ رَسُولُ اللهِ ﷺ