Sahih al-Bukhari, Volume 3, Book 27, Hadith 29 (USC-MSA) ⓘ
Narrated Anas: As above, but mentioned "the walls of Medina" instead of "the high places of Medina. Al-Harith bin `Umar agrees with Anas.
حَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا إِسْمَاعِيلُ، عَنْ حُمَيْدٍ، عَنْ أَنَسٍ، قَالَ جُدُرَاتٍ. تَابَعَهُ الْحَارِثُ بْنُ عُمَيْرٍ.
also referenced under: Book 26, Hadith 29 (In-Book) & Hadith 1802 (DarusSalam)