What did Prophet Muhammad (saw) point to when he said, "Lo! Afflictions will verily emerge hence; afflictions will verily emerge hence where the (side of the head of) Satan appears."?
 Narrated `Abdullah bin `Umar:                     I saw Allah's Apostle pointing towards the east saying, "Lo! Afflictions will verily emerge hence; afflictions will verily emerge hence where the (side of the head of) Satan appears."