What did the Prophet Muhammad (saw) instruct to be used as Miqat for the people of Najd, Sham, and Medina?
 Narrated `Abdullah bin Dinar:                     Ibn `Umar said, "The Prophet fixed Qarn as the Miqat (for assuming the Ihram) for the people of Najd, and Al-Juhfa for the people of Sham, and Dhul-Hulaifa for the people of Medina." Ibn `Umar added, "I heard this from the Prophet, and I have been informed that the Prophet said, 'The Miqat for the Yemenites is Yalamlam.' "When Iraq was mentioned, he said, "At that time it was not a Muslim country."