Musnad Ahmad 27:1968

Yahya ibn Adam narrated to us, Zuhayr narrated to us, from Musa ibn Uqbah, Salim ibn Abdullah narrated to me, from Abdullah ibn Umar, who said: "The al-Bayda' which you falsely attribute to the Messenger of Allah (may Allah bless him and grant him peace)—the Messenger of Allah (may Allah bless him and grant him peace) did not enter into the state of Ihram except from near the mosque of Dhu al-Hulayfah."