Book 24, Hadith 34

It was narrated from 'Abdullah bin 'Umar that a man stood up in the Masjid and said:"O Messenger of Allah, from where do you command us to enter Ihram?'' The Messenger of Allah Said: "The people of Al-Madinah should enter Ihram from Dhul-Hulaifah, the people of Ash-sham should enter Ihram from Al-Juhfah, the people of Najd should enter Ihram from Qarn.'' Ibn 'Umar said: "And they say that the Messenger of Allah said: 'the people of Yemen should enter into Ihram from Yalamlam.''' And 'Ibn 'Umar used to say: "I did not hear this from the Messenger of Allah