Sahih Bukhari Volume 2, Book 25, Hadith 1525

حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا وُهَيْبٌ، حَدَّثَنَا ابْنُ طَاوُسٍ، عَنْ أَبِيهِ، عَنِ ابْنِ عَبَّاسٍ، قَالَ إِنَّ النَّبِيَّ صلى الله عليه وسلم وَقَّتَ لأَهْلِ الْمَدِينَةِ ذَا الْحُلَيْفَةِ، وَلأَهْلِ الشَّأْمِ الْجُحْفَةَ، وَلأَهْلِ نَجْدٍ قَرْنَ الْمَنَازِلِ، وَلأَهْلِ الْيَمَنِ يَلَمْلَمَ، هُنَّ لَهُنَّ وَلِمَنْ أَتَى عَلَيْهِنَّ مِنْ غَيْرِهِنَّ، مِمَّنْ أَرَادَ الْحَجَّ وَالْعُمْرَةَ، وَمَنْ كَانَ دُونَ ذَلِكَ فَمِنْ حَيْثُ أَنْشَأَ، حَتَّى أَهْلُ مَكَّةَ مِنْ مَكَّةَ‏.

Narrated By Ibn Abbas : Allah's Apostle (p.b.u.h) made Dhul-Huiaifa as the Miqat for the people of Medina; Al-Juhfa for the people of Sham; Qarn-al-Manazil for the people of Najd; and Yalamlam for the people of Yemen; and these Mawaqit are for the people at those very places, and besides them for those who come thorough those places with the intention of performing Hajj and 'Umra; and whoever is living within these boundaries can assume Ihram from the place he starts, and the people of Mecca can assume Ihram from Mecca.