Narrated Anas: The Prophet said, "Medina is a sanctuary from that place to that. Its trees should not be cut and no heresy should be innovated nor any sin should be committed in it, and whoever innovates in it an heresy or commits sins (bad deeds), then he will incur the curse of Allah, the angels, and all the people." (See Hadith No. 409, Vol 9).

Narrated Ibn `Abbas: On the Day of the Conquest of Mecca, Allah's Apostle said, "Allah has made this town a sanctuary. Its thorny bushes should not be cut, its game should not be chased, and its fallen things should not be picked up except by one who would announce it publicly."

Narrated Sa`id: Abu Huraira once said (to the people), "What will your state be when you can get no Dinar or Dirhan (i.e. taxes from the Dhimmis)?" on that someone asked him, "What makes you know that this state will take place, O Abu- Hu raira?" He said, "By Him in Whose Hands Abu Huraira's life is, I know it through the statement of the true and truly inspired one (i.e. the Prophet)." The people asked, "What does the Statement say?" He replied, "Allah and His Apostle's asylum granted to Dhimmis, i.e. non-Muslims living in a Muslim territory) will be outraged, and so Allah will make the hearts of these Dhimmis so daring that they will refuse to pay the Jizya they will be supposed to pay."

Narrated `Asim: I said to Anas, "Did Allah's Apostle make Medina a sanctuary?" He replied, "Yes, (Medina is a sanctuary from such-and-such place to such-and-such place. It is forbidden to cut its trees, and whoever innovates an heresy in it or commits a sin therein, will incur the curse of Allah, the angels, and all the people." Then Musa bin Anas told me that Anas added, "..... or gives refuge to such an heretic or a sinner..."