It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "I saw in a dream a black, disheveled-haired woman leaving Madinah and stopping at Mahya‘ah, that is, Juhfah." The Prophet (peace and blessings be upon him) interpreted this to mean that the epidemics and calamities of Madinah had been transferred to Juhfah.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 5976
Hadith Gradingحکم دارالسلام:إسناده صحيح ، خ: 7038، ابن جريج صرح بالتحديث هنا، فانتفت شبهة تدليسه.