I asked Anas (about the Prophet's ʿUmra) and he replied, "The Prophet ﷺ performed ʿUmra when the pagans made him return, and Umra of al-Hudaibiya (the next year), and another ʿUmra in Dhi-l-Qa'da, and another ʿUmra in combination with his Hajj."
اعْتَمَرَ النَّبِيُّ ﷺ حَيْثُ رَدُّوهُ وَمِنَ الْقَابِلِ عُمْرَةَ الْحُدَيْبِيَةِ وَعُمْرَةً فِي ذِي الْقَعْدَةِ وَعُمْرَةً مَعَ حَجَّتِهِ