Riyad as-Salihin, Book 18, Hadith 1724 (In-Book) ⓘ
Abu Hurairah (May Allah be pleased with him) said: The Prophet said, "The most disgraceful man near Allah is a man who calls himself (or likes others to call him) Malikul-Amlak (i.e., king of kings)."[Al-Bukhari and Muslim].
وعن أبي هريرة رضي الله عنه النبي صلى الله عليه وسلم قال: "إن أخنع اسم عند الله عز وجل رجل تسمى ملك الأملاك" ((متفق عليه)).