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 Sahih Muslim 1364
Arabic hadith text
وَحَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، وَعَبْدُ بْنُ حُمَيْدٍ، جَمِيعًا عَنِ الْعَقَدِيِّ، - قَالَ عَبْدٌ أَخْبَرَنَا عَبْدُ الْمَلِكِ بْنُ عَمْرٍو، - حَدَّثَنَا عَبْدُ اللَّهِ بْنُ جَعْفَرٍ، عَنْ إِسْمَاعِيلَ بْنِ مُحَمَّدٍ، عَنْ عَامِرِ بْنِ، سَعْدٍ أَنَّ سَعْدًا، رَكِبَ إِلَى قَصْرِهِ بِالْعَقِيقِ فَوَجَدَ عَبْدًا يَقْطَعُ شَجَرًا أَوْ يَخْبِطُهُ فَسَلَبَهُ فَلَمَّا رَجَعَ سَعْدٌ جَاءَهُ أَهْلُ الْعَبْدِ فَكَلَّمُوهُ أَنْ يَرُدَّ عَلَى غُلاَمِهِمْ أَوْ عَلَيْهِمْ مَا أَخَذَ مِنْ غُلاَمِهِمْ فَقَالَمَعَاذَ اللَّهِ أَنْ أَرُدَّ شَيْئًا نَفَّلَنِيهِ رَسُولُ اللَّهِ صلى الله عليه وسلم. وَأَبَى أَنْ يَرُدَّ عَلَيْهِمْ
Translation
'Amir b. Sa'd reported that Sa'd rode to his castle in al-'Aqiq and found a slave cutting down the trees, or beating off their leaves, so he stripped him off his belongings. When Sa'd returned, there came to him the masters of the slave and negotiated with him asking him to return to their slave or to them what he had taken from their slave, whereupon he said
God forbid that I should return anything which Allah's Messenger (ﷺ) has given me as spoil, and refused to return anything to them.