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)‏‏)‏‏.‏

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