Jami` at-Tirmidhi 2837
جامع الترمذي#2837SahihNarrated 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)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 43:111