Sahih Bukhari Volume 004, Book 053, Hadith Number 336.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 53. One-Fifth Of Booty to the Cause Of Allah (Khumus)
Narated By 'Abdullah : The Prophet stood up and delivered a sermon, and pointing to 'Aisha's house (i.e. eastwards), he said thrice, "Affliction (will appear from) here," and, "from where the side of the Satan's head comes out (i.e. from the East)."