Allaah’s Messenger (sallallahu alaihi wasallam) described the morning after Lailatul-Qadr, so that the Muslim may know which day it is. From Ubayy, (RA), who said: that he (sallallahu alaihi wasallam) said: “On the morning following Laylatul-Qadr the sun rises not having any rays, as if it were a brass dish, until it rises up.”
Sidratul Muntaha 