Sahih Bukhari
Interpretation of Dreams
Volume: 009 / Book Number: 087 / Hadith Number: 161
Narrated 'Abdullah:
The Prophet said, "I saw (in a dream) a black woman with unkempt hair going out of Medina and settling at Mahai'a, i.e., Al-Juhfa. I interpreted that as a symbol of epidemic of Medina being transferred to that place (Al-Juhfa)."