(3) باب كَمِ اعْتَمَرَ النَّبِيُّ صلى الله عليه وسلم
Narrated Qatada:
I asked Anas how many times the Prophet (ﷺ) had performed `Umra. He replied, "Four times. 1. `Umra of Hudaibiya in Dhi-l-Qa'da when the pagans hindered him; 2. `Umra in the following year in Dhi-l- Qa'da after the peace treaty with them (the pagans); 3. `Umra from Al-Ja'rana where he distributed the war booty." I think he meant the booty (of the battle) of Hunain. I asked, "How many times did he perform Hajj?" He (Anas) replied, "Once. "
Reference: Sahih al-Bukhari 1778
In-book reference: Book 26, Hadith 6
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 27, Hadith 6