It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that he said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "The most detestable name in the sight of Allah is that a person calls himself 'Malik al-Amlak' (the King of Kings)."
Hadith Referenceالادب المفرد / كتاب الأسماء / 817
Hadith Gradingالألبانی:صحيح
Hadith Takhrij«صحيح : أخرجه البخاري ، كتاب الأدب : 6205 و مسلم : 2143 و أبوداؤد : 4961 و الترمذي : 2837»