The Messenger of Allah ﷺ would pray two rak'ahs before and two after the noon prayer, two after the sunset prayer in his house, and two after the night prayer. He would not pray after the Friday prayer till he departed. He would then pray two rak'ahs. (Using translation from Abū Dāʾūd 1252)   

أَنَّ النَّبِيَّ ﷺ كَانَ «يُصَلِّي قَبْلَ الظُّهْرِ رَكْعَتَيْنِ وَبَعْدَ الظُّهْرِ رَكْعَتَيْنِ وَبَعْدَ الْمَغْرِبِ رَكْعَتَيْنِ فِي بَيْتِهِ وَبَعْدَ الْعِشَاءِ رَكْعَتَيْنِ وَبَعْدَ الْجُمُعَةِ رَكْعَتَيْنِ فِي بَيْتِهِ»  

[Machine] From Umm Habibah, the wife of the Prophet ﷺ , she narrated that she heard the Prophet ﷺ say, "There is no Muslim servant who prays twelve voluntary Rak'ahs every day, other than the obligatory prayers, except that Allah will build a house for him in Paradise or a palace in Paradise." Umm Habibah said, "I have never ceased praying them after I heard this." 'Amr ibn Salamah said the same, and Nu'man said the same.  

عَنْ أُمِّ حَبِيبَةَ زَوْجِ النَّبِيِّ ﷺ أَنَّهَا سَمِعَتِ النَّبِيَّ ﷺ يَقُولُ «مَا مِنْ عَبْدٍ مُسْلِمٍ يُصَلِّي كُلَّ يَوْمٍ ثِنْتَيْ عَشْرَةَ رَكْعَةً تَطَوُّعًا غَيْرَ الْفَرِيضَةِ إِلَّا لَهُ بَيْتٌ فِي الْجَنَّةِ أَوْ بُنِيَ لَهُ بَيْتٌ فِي الْجَنَّةِ » قَالَتْ أُمُّ حَبِيبَةَ فمَا بَرِحْتُ أُصَلِّيهِنَّ بَعْدُ وَقَالَ عَمْرٌو مِثْلَهُ وَقَالَ النُّعْمَانُ مِثْلَهُ  

[Machine] The Messenger of Allah ﷺ used to not leave four (supererogatory units) before noon and two units before dawn.  

كَانَ رَسُولُ اللَّهِ ﷺ «لَا يَدَعُ أَرْبَعًا قَبْلَ الظُّهْرِ وَرَكْعَتَيْنِ قَبْلَ الْفَجْرِ»