The Messenger of Allah (SWAS) appointed the following places for putting on Ihram : Dhul al-Hulaifah for the people of Madina, al-Juhfah for the people of Syria and al-Qarn for the people of Najd and have been told that appointed Yalamlam for the people of Yemen. (Using translation from Abū Dāʾūd 1737)
وَقَّتَ رَسُولُ اللهِ ﷺ لِأَهْلِ الْمَدِينَةِ ذَا الْحُلَيْفَةِ وَلِأَهْلِ الشَّامِ الْجُحْفَةَ وَلِأَهْلِ نَجْدٍ قَرْنًا قَالَ ابْنُ عُمَرَوَنُبِّئْتُ أَنَّهُ وَقَّتَ لِأَهْلِ الْيَمَنِ يَلَمْلَمَ