Sahih Bukhari Volume 4, Book 56, Hadith 2890

حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ عَبْدِ اللَّهِ، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، عَنْ عَمْرِو بْنِ أَبِي عَمْرٍو، مَوْلَى الْمُطَّلِبِ بْنِ حَنْطَبٍ، أَنَّهُ سَمِعَ أَنَسَ بْنَ مَالِكٍ ـ رضى الله عنه ـ يَقُولُ خَرَجْتُ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم إِلَى خَيْبَرَ أَخْدُمُهُ، فَلَمَّا قَدِمَ النَّبِيُّ صلى الله عليه وسلم رَاجِعًا، وَبَدَا لَهُ أُحُدٌ قَالَ ‏"‏ هَذَا جَبَلٌ يُحِبُّنَا وَنُحِبُّهُ ‏"‏‏.‏ ثُمَّ أَشَارَ بِيَدِهِ إِلَى الْمَدِينَةِ قَالَ اللَّهُمَّ إِنِّي أُحَرِّمُ مَا بَيْنَ لاَبَتَيْهَا كَتَحْرِيمِ إِبْرَاهِيمَ مَكَّةَ ‏"‏ اللَّهُمَّ بَارِكْ لَنَا فِي صَاعِنَا وَمُدِّنَا ‏"

Narrated By Anas bin Malik : I went along with the Prophet to Khaibar so as to serve him. (Later on) when the Prophet returned he, on seeing the Uhud mountain, said, "This is a mountain that loves us andis loved by us." Then he pointed to Medina with his hand saying, "O Allah! I make the area which is in between Medina's two mountains a sanctuary, as Abraham made Mecca a sanctuary. O Allah! Bless us in our Sa and Mudd (i.e. units of measuring)."