[Machine] The Prophet ﷺ used to voluntarily pray two units before Dhuhr prayer, two units after it, two units after Maghrib prayer, and two units after Isha prayer. Hafsah informed me that he used to also pray two units after the dawn prayer.
كَانَ تَطَوُّعُ النَّبِيِّ ﷺ رَكْعَتَيْنِ قَبْلَ الظُّهْرِ وَرَكْعَتَيْنِ بَعْدَهَا وَرَكْعَتَيْنِ بَعْدَ الْمَغْرِبِ وَرَكْعَتَيْنِ بَعْدَ الْعِشَاءِ قَالَ وَأَخْبَرَتْنِي حَفْصَةُ أَنَّهُ كَانَ يُصَلِّي رَكْعَتَيْنِ بَعْدَ طُلُوعِ الْفَجْرِ