Hadith 1183 Part B

setting

Abu Zubair heard Jabir b. 'Abdullah (Allah be pleased with them) as saying as he was asked about (the place for entering upon the) state of Ihram

I heard (and I think he carried it directly to the Messenger of Allah) him saying: For the people of Medina Dhu'l-Hulaifa is the place for entering upon the state of Ihram, and for (the people coming through the other way, i.e. Syria) it is Juhfa; for the people of Iraq it is Dhat al-'Irq; for the people of Najd it is Qarn (al-Manazil) and for the people of Yemen it is Yalamlam.