كتاب فضائل المدينة
Read the English translation first, with the original Arabic directly underneath.
Narrated Anas:
The Prophet (ﷺ) 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).
الْمَدِينَةُ حَرَمٌ، مِنْ كَذَا إِلَى كَذَا، لاَ يُقْطَعُ شَجَرُهَا، وَلاَ يُحْدَثُ فِيهَا حَدَثٌ، مَنْ أَحْدَثَ حَدَثًا فَعَلَيْهِ لَعْنَةُ اللَّهِ وَالْمَلاَئِكَةِ وَالنَّاسِ أَجْمَعِينَ