Urwah bin al-Zubayr (may Allah have mercy on him) said: The Messenger of Allah (peace and blessings be upon him) performed only three Umrahs: one in Shawwal and two in Dhu al-Qa'dah.
It has also been narrated through Abu Ishaq from Sayyiduna al-Bara' bin Azib (may Allah be pleased with them both), but that is not preserved (mahfuz).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 8839