What was the interpretation that the Prophet Muhammad (saw) gave for the dream he saw in which 'Umar (peace be upon him) was wearing a shirt that was so long it was dragging?
 Narrated Abu Sa`id Al-Khudri:                     I heard Allah's Apostle saying, "While I was sleeping, the people were presented to me (in a dream). They were wearing shirts, some of which were merely covering their (chests). and some were a bit longer. `Umar was presented before me and his shirt was so long that he was dragging it." They asked, "How have you interpreted it, O Allah's Apostle?" He said, "Religion."