رَوَى زُرَارَةُ بْنُ أَعْيَنَ عَنْ أَبِي جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ قَالَ: «حَرَّمَ رَسُولُ اَللَّهِ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ اَلْمَدِينَةَ مَا بَيْنَ لاَبَتَيْهَا صَيْدَهَا وَ حَرَّمَ عَلَيْهِ اَلسَّلاَمُ مَا حَوْلَهَا بَرِيداً فِي بَرِيدٍ أَنْ يُخْتَلَى خَلاَهَا أَوْ يُعْضَدَ شَجَرُهَا إِلاَّ عُودَيِ اَلنَّاضِحِ ».
It is narrated from Zurarah ibn A’yun, from Abu Ja’far (a.s), who said: "The Messenger of Allah (swt) (peace be upon him and his family) sanctified the area between its two rocky grounds as the sanctuary of Medina, prohibiting its game. He (saws) also prohibited the area surrounding it—extending a barid by a barid (approximately 22 kilometers by 22 kilometers)—from having its vegetation cleared or its trees cut, except for branches used to drive camels (‘udayn al-nadhih)."