Fiqh-us-Sunnah Volume 005, Hajj and 'Umrah, Fiqh 5.122.

Section : Umrahs Performed By the Prophet.

Ibn 'Abbas reported that the Prophet (peace be upon him) performed four 'Umrahs in his lifetime: 'Umrah of Hudaibiyah, one that he performed to make up for another missed 'Umrah, a third that he performed going forth from Al-Ji'rannah, and the fourth he combined with his Hajj. This was reported by Ahmad, Abu Daw'ud and Ibn Majah, with a sound chain of authorities.

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