Sahih Muslim 1372
Sahih Muslim · Book 15: The Book of Pilgrimage · The virtue of Al-Madinah and the Prophet's Prayer for it to be blessed. Its sanctity and the sanctity of its game and trees. The Boundaries of its sanctuary
Abu Huraira (Allah be pleased with him) reported that Allah's Messenger (ﷺ) declared sacred the territory between two lava mountains of Medina. Abu Huraira said:
وَحَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ ، وَمُحَمَّدُ بْنُ رَافِعٍ ، وَعَبْدُ بْنُ حُمَيْدٍ ، قَالَ إِسْحَاقُ أَخْبَرَنَا عَبْدُ الرَّزَّاقِ ، حَدَّثَنَا مَعْمَرٌ ، عَنِ الزُّهْرِيِّ ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ ، عَنْ أَبِي هُرَيْرَةَ ، قَالَ حَرَّمَ رَسُولُ اللَّهِ صلى الله عليه وسلم مَا بَيْنَ لاَبَتَىِ الْمَدِينَةِ . قَالَ أَبُو هُرَيْرَةَ فَلَوْ وَجَدْتُ الظِّبَاءَ مَا بَيْنَ لاَبَتَيْهَا مَا ذَعَرْتُهَا . وَجَعَلَ اثْنَىْ عَشَرَ مِيلاً حَوْلَ الْمَدِينَةِ حِمًى .
If I were to find deer in the territory between the two mountains, I would not molest them, and he (the Holy Prophet) declared twelve miles of suburb around Medina as a prohibited pasture.