It is narrated from Abu Az-Zubair that he heard Jabir bin Abdullah (may Allah be pleased with him) when he was asked about the place for entering into Ihram. He said: "I heard it," then he fell silent. I think he was referring to the Prophet (peace be upon him) that he said: "The people of Madinah will enter into Ihram from Dhu'l-Hulaifah, those coming from another route from Juhfah, the people of Iraq from Dhat 'Irq, the people of Najd from Qarn al-Manazil, and the people of Yemen from Yalamlam."
Hadith Referenceمسند الإمام الشافعي / كتاب الحج / 765
Hadith Takhrijاخرجه مسلم ، الحج، باب مواقيت الحج (1183)۔