Maliks Muwatta Book 20, Hadith Number 56.
Section : Umra in the Months of Hajj.
Yahya related to me from Malik that he had heard that the Messenger of Allah, may Allah bless him and grant him peace, did umra three times| in the year of Hudaybiya, in the year of al-Qadiyya, and in the year of al-Jiirrana.