«أغيظ رجل على الله يوم القيامة وأخبثه وأغيظه عليه رجل كان يسمى ملك الأملاك لا ملك إلا الله»
The Prophet (peace and blessings be upon him) said:
"On the Day of Resurrection, the man who will be the greatest target of the wrath of Allah Almighty, and the most wicked and evil in His sight, will be the one who used to be called (in the world) the King of Kings (the king of all kings). In reality there is no king but Allah."
Hadith Referenceصحیح الجامع الصغیر / حرف الألف / 1081