O ye who believe! Heed Allah as He deserves to be heeded, and die not except in a state of Islam [in submission to Him].
Narrated Abu Huraira: Prophet Muhammad (Peace Be Upon Him) said,
"On the Day of Resurrection Allah will hold the whole earth and fold the heaven with His right hand and say, 'I am the King: where are the kings of the earth?" (Al-Bukhari, Volume 9, Book 93, Number 479)