Narrated Ibn Abbas:
The Prophet (p.b.u.h) fixed Dhul-Hulaifa as the Miqat for the people of Medina, Al-Juhfa for the people of Sham, Qarn-ul-Manazil for the people of Najd, and Yalamlam for the people of Yemen; and these Mawaqit are for those living at those very places, and besides them for those whom come through them with the intention of performing Hajj and Umra; and whoever is living within these Mawaqit should assume lhram from where he starts, and the people of Mecca can assume Ihram from Mecca.