[Machine] The Prophet ﷺ used to hide what he would recite in them, and he mentioned, "Say, O disbelievers" [Surah Al-Kafirun 1] and "Say, He is Allah, [who is] One" [Surah Al-Ikhlas 1]. Sa'id said in the two units of Fajr prayer.  

كَانَ رَسُولُ اللَّهِ ﷺ يُخْفِي مَا يَقْرَأُ فِيهِمَا وَذَكَرَتْ {قُلْ يَا أَيُّهَا الْكَافِرُونَ} [الكافرون 1] وَ {قُلْ هُوَ اللَّهُ أَحَدٌ} [الإخلاص 1] قَالَ سَعِيدٌ فِي رَكْعَتَيِ الْفَجْرِ  

[Machine] The Prophet ﷺ used to pray two quick prostrations after the break of dawn, which was a time when he would not enter upon the Prophet ﷺ.  

أَنَّ النَّبِيَّ ﷺ كَانَ «يُصَلِّي سَجْدَتَيْنِ خَفِيفَتَيْنِ بَعْدَمَا يَطْلُعُ الْفَجْرُ وَكَانَتْ سَاعَةً لَا أَدْخُلُ فِيهَا عَلَى النَّبِيِّ ﷺ»  

that when the Muaddhin fell silent following the call to Subh prayer and dawn had broken, he would pray two brief rak'ahs before getting up to pray. (Using translation from Nasāʾī 1773)   

عَنْ حَفْصَةَ زَوْجِ النَّبِيِّ ﷺ قَالَتْ كَانَ رَسُولُ اللَّهِ ﷺ «إِذَا سَكَتَ الْمُؤَذِّنُ مِنْ أَذَانِ الصُّبْحِ وَبَدَا الصُّبْحُ صَلَّى رَكْعَتَيْنِ خَفِيفَتَيْنِ قَبْلَ أَنْ تُقَامَ الصَّلَاةُ»  

Salim narrated on the authority of his father that the Messenger of Allah ﷺ used to observe two rak'ahs after Jumu'a. (Using translation from Muslim 882c)  

أَنَّ النَّبِيَّ ﷺ «كَانَ يُصَلِّي بَعْدَ الْجُمُعَةِ رَكْعَتَيْنِ» وأخْبرتْهُ حفْصةُ أنَّهُ كانَ «يُصلِّي إِذَا أَضَاءَ الصُّبْحُ رَكْعَتَيْنِ»