Sayyiduna Jabir (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) declared Madinah a sanctuary to the extent of one barid in every direction.
Imam al-Bazzar recorded it; its chain contains a narrator, al-Fadl bin Mubashshir, whom Ibn Hibban declared thiqah (trustworthy), while a group (of scholars) declared him da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الحج / 5800