Chapter 16: The Book of Pilgrimage
Ibn 'Umar (Allah be pleased with them) reported that the Messenger of Allah (ﷺ) had commanded the people of Medina to enter upon the state of Ihram at Dhu' l-Hulaifa; the people of Syria at Juhfa; the people of Najd at Qarn (al-Manazil). 'Abdullah b. 'Umar (Allah be pleased with them) said: I was informed that he said that the people of Yemen should enter upon the state of Ihram at Yalamlam.
Sahih Muslim 1182d