Sahih Bukhari Volume 3, Book 29, Hadith Number 59.
Narated By Ibn ‘Abbas : “The Prophet said, ‘Allah has made Mecca, a sanctuary, so it was a sanctuary before me and will continue to be a sanctuary after me. It was made legal for me (i.e. I was allowed to fight in it) for a few hours of a day. It is not allowed to uproot its shrubs or to cut its trees, or to chase (or disturb) its game, or to pick up its luqata (fallen things) except by a person who would announce that (what he has found) publicly.’ Al-‘Abbas said, ‘O Allah’s Apostle! Except Al-ldhkhir (a kind of grass) (for it is used) by our goldsmiths and for our graves.’ The Prophet then said, ‘Except Al-idhkhir.’ ” ‘Ikrima said, ‘Do you know what “chasing or disturbing” the game means? It means driving it out of the shade to occupy its place.”