Musnad Abu Ya'la al-Mawsili 154:88

Khalaf ibn Hisham narrated to us, Abu 'Awanah narrated to us, from Zayd ibn Jubayr, who said: I asked Ibn 'Umar, "From where is it permissible for me to perform 'Umrah?" He said, "The Messenger of Allah (ﷺ) obligated it for the people of Medina from Dhu al-Hulayfah, for the people of Syria from al-Juhfah, and for the people of Najd from Qarn."