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).  

عَنِ النَّبِيِّ ﷺ قَالَ الْمَدِينَةُ حَرَمٌ مِنْ كَذَا إِلَى كَذَا لاَ يُقْطَعُ شَجَرُهَا وَلاَ يُحْدَثُ فِيهَا حَدَثٌ مَنْ أَحْدَثَ حَدَثًا فَعَلَيْهِ لَعْنَةُ اللَّهِ وَالْمَلاَئِكَةِ وَالنَّاسِ أَجْمَعِينَ  

I asked Anas b. Malik whether Messenger of Allah ﷺ had declared Medina as sacred. He said: Yes. (the area) between so and so. He who made any innovation in it, and further said to me: It is something serious to make any innovation in it (and he who does it) there is upon him the curse of Allah, and that of the angels and of all the people, Allah will not accept from him on the Day of Resurrection either obligatory acts or the surpererogatory acts. Ibn Anas said: Or he accommodates an innovator.  

قُلْتُ لأَنَسِ بْنِ مَالِكٍ أَحَرَّمَ رَسُولُ اللَّهِ ﷺ الْمَدِينَةَ قَالَ نَعَمْ مَا بَيْنَ كَذَا إِلَى كَذَا فَمَنْ أَحْدَثَ فِيهَا حَدَثًا قَالَ ثُمَّ قَالَ لِي هَذِهِ شَدِيدَةٌ مَنْ أَحْدَثَ فِيهَا حَدَثًا فَعَلَيْهِ لَعْنَةُ اللَّهِ وَالْمَلاَئِكَةِ وَالنَّاسِ أَجْمَعِينَ لاَ يَقْبَلُ اللَّهُ مِنْهُ يَوْمَ الْقِيَامَةِ صَرْفًا وَلاَ عَدْلاً قَالَ فَقَالَ ابْنُ أَنَسٍ أَوْ آوَى مُحْدِثًا  

[Machine] The Messenger of Allah, ﷺ , said, "The city is sacred from here to here. Whoever innovates in it or shelters an innovator has upon him the curse of Allah, the angels, and all the people. Its trees should not be cut down." He also said, "Except for the purpose of feeding camels."  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ الْمَدِينَةُ حَرَامٌ مِنْ لَدُنْ كَذَا إِلَى كَذَا فَمَنْ أَحْدَثَ حَدَثًا أَوْ آوَى مُحْدِثًا فَعَلَيْهِ لَعْنَةُ اللهِ وَالْمَلَائِكَةِ وَالنَّاسِ أَجْمَعِينَ لَا يُعْضَدُ شَجَرُهَا قَالَ وَقَالَ الْحَسَنُ إِلَّا لِعَلَفِ بَعِيرٍ  

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). (Using translation from Bukhārī 1867)   

أَنَّ النَّبِيَّ ﷺ قَالَ إِنَّ الْمَدِينَةَ حَرَمٌ آمِنٌ مِنْ كَذَا إِلَى كَذَا لَا يُقْطَعُ شَجَرُهَا وَلَا يُحْدَثُ فِيهَا حَدَثٌ فَمَنْ أَحْدَثَ فِيهَا حَدَثًا فَعَلَيْهِ لَعْنَةُ اللهِ وَالْمَلَائِكَةِ وَالنَّاسِ أَجْمَعِينَ لَا يُقْبَلُ مِنْهُ صَرْفٌ وَلَا عَدْلٌ  

"المدينة حَرَمٌ من كذا إِلى كذا، لا يُقْطَعُ شَجَرُها, ولا يُحْدَثُ فيها حَدَثٌ، من أَحْدَثَ فيها حَدثًا أَو آوى مُحْدثًا فعليه لعنةُ الله والملائكة والناسِ أجمعين، لا يقبل اللهُ منه يوم القيامة صَرْفا ولا عَدْلا".