Salim bin 'Abdullah narrated from his father about the dream of the Prophet (s.a.w) who said:
I saw a black woman with unkempt hair going out of Al-Madinah, until she stood in Mabaya'ah, and it is Al-Juhfah. So I interpreted that to be an epidemic in Al-Madinah that would spread to Al-Juhfah.