Sahih Muslim Book 7, Hadith Number 2880.

Chapter : Concerning the Umras performed by Allah’s Apostle (may peace be upon him) and their respective times.

Qatida said: I asked Anas (Allah be pleased with him) as to bow many Pilgrimages had been performed by Allah’s Messenger (may peace be upon him), and he replied: One Hajj and four ‘Umras were performed by him. The rest of the Hadith is the same.