صحيح البخاري

Narrated Mujahid:

Allah's Messenger (ﷺ) got up on the day of the Conquest of Mecca and said, "Allah has made Mecca a sanctuary since the day He created the Heavens and the Earth, and it will remain a sanctuary by virtue of the sanctity Allah has bestowed on it till the Day of Resurrection. It (i.e. fighting in it) was not made lawful to anyone before me!, nor will it be made lawful to anyone after me, and it was not made lawful for me except for a short period of time. Its game should not be chased, nor should its trees be cut, nor its vegetation or grass uprooted, not its Luqata (i.e. Most things) picked up except by one who makes a public announcement about it." Al-Abbas bin `Abdul Muttalib said, "Except the Idhkhir, O Allah's Messenger, as it is indispensable for blacksmiths and houses." On that, the Prophet (ﷺ) kept quiet and then said, "Except the Idhkhir as it is lawful to cut."