Narrated Al-A'raj:
that Abu Hurairah conveyed to him that the Prophet (ﷺ) said: "The most despicable (Akhna) name to Allah on the Day of Judgement is that of a man named King of Kings. (Malikil-Amlak)." (TR)
English reference (TR): Vol. 5, Book 41, Hadith 2837 (TR)
Arabic reference (TR): Book 43, Hadith 3071 (TR)