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
← Previous Hadith The Prophet (ﷺ) delivered a sermon at `Arafat and said, "Whoever does not get an Izar can wear trousers, and whoever cannot get a pair of shoes can wear Khuffs (socks made from thick fabric or leather)."

Sahih al-Bukhari Book 28, Hadith 23 Next Hadith → 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