I went to visit `Abdullah bin `Umar at his house which contained many tents made of cotton cloth and
these were encircled with Suradik (part of the tent). I asked him from where, should one assume Ihram
for Umra. He said, "Allah's Messenger (ﷺ) had fixed as Miqat (singular of Mawaqit) Qarn for the people of
Najd, Dhul-Hulaifa for the people of Medina, and Al-Juhfa for the people of Sham."
Sahih al-Bukhari Book 25, Hadith 10