Praise be to Allaah.
It was narrated from Qutaadah that Anas (may Allaah be pleased with him) told him that the Messenger of Allaah (peace and blessings of Allaah be upon him) performed ‘Umrah four times, all of them in Dhu’l-Qi’dah apart from the ‘Umrah which he performed with his Hajj: (he did) ‘Umrah from al-Hudaybiyah or at the time of al-Hudaybiyah in Dhu’l-Qi’dah; (he did) ‘Umrah the following year in Dhu’l-Qi’dah; and (he did) ‘Umrah from Ja’raanah when he shared out the booty of Hunayn in Dhu’l-Qi’dah.
Narrated by al-Bukhaari, al-Hajj, 1654; Muslim, al-Hajj, 1253
Ibn al-Qayyim said:
He did ‘Umrah four times after the Hijrah, four ‘Umrahs, all of them in Dhu’l-Qi’dah.
The first was the ‘Umrah of al-Hudaybiyah, which was the first of them, in 6 AH, but the mushrikeen prevented him from reaching the House (the Ka’bah), so he offered the sacrifice (of camels) when his way was blocked at al-Hudaybiyah, and he and his companions shaved their heads and exited the state of ihraam, and went back in the same year to Madeenah.