The Prophet (ﷺ) fixed Dhul-Hulaifa as the Miqat (the place for assuming Ihram) for the people of Medina, and Qaran-al-Manazil for the people of Najd, and Yalamlam for the people of Yemen. These Mawaqit are for those people and also for those who come through these Mawaqit (from places other than the above-mentioned) with the intention of (performing) Hajj and Umra. And those living inside these Mawaqit can assume Ihram from the place where they start; even the people of Mecca can assume Ihram from Mecca.
Sahih al-Bukhari Book 28, Hadith 25
← Previous Hadith The Prophet (ﷺ) assumed Ihram for Umra in the month of Dhul-Qa'da but the (pagan) people of Mecca refused to admit him into Mecca till he agreed on the condition that he would not bring into Mecca any arms but sheathed.

Sahih al-Bukhari Book 28, Hadith 24 Next Hadith → Allah's Messenger (ﷺ) entered Mecca in the year of its Conquest wearing an Arabian helmet on his head and when the Prophet (ﷺ) took it off, a person came and said, "Ibn Khatal is holding the covering of the Ka`ba (taking refuge in the Ka`ba)." The Prophet (ﷺ) said, "Kill him."

Sahih al-Bukhari Book 28, Hadith 26