(4) باب تَحْرِيمِ التَّسَمِّي بِمَلِكِ الأَمْلاَكِ وَبِمَلِكِ الْمُلُوكِ
Abu Huraira reported Allah's Messenger (ﷺ) as saying:
The vilest name in Allah's sight is Malik al-Amidh (King of Kings). The narration transmitted on the authority of Shaiba (contains these words): There is no king but Allah, the Exalted and Glorious. Sufyan said: Similarly, the word Shahinshah (is also the vilest appellation). Ahmad b. Hanbal said: I asked Abu 'Amr about the meaning of Akhna. He said: The vilest. (ID)
Reference (ID): Sahih Muslim 2143 a (ID)
In-book reference (ID): Book 38, Hadith 25 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Book 25, Hadith 5338 (ID)