Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
suyuti:3669a

The most wretched person in the sight of Allah on the Day of Resurrection and the worst person and target of His wrath would of the person who is called Malik al-Amlak (the King of Kings) for there is no king but Allah. (Using translation from Muslim 2143b)   

السيوطي:٣٦٦٩a

"أغْيَظُ رجل على اللهِ يومَ القيامةِ، وأَخبَثُهُ وأغْيَظُهُ عَلَيهِ رَجُلٌ كان يُسَمَّى مَلِكَ الأمْلاكِ، لا مَلِكَ إِلَّا الله ﷻ" .  

[حم] أحمد [م] مسلم عن أبي هريرة

See similar narrations below:

Collected by Muslim, Aḥmad
muslim:2143bMuḥammad b. Rāfiʿ > ʿAbd al-Razzāq > Maʿmar > Hammām b. Munabbih > Hadhā Mā > Abū Hurayrah

The most wretched person in the sight of Allah on the Day of Resurrection and the worst person and target of His wrath would of the person who is called Malik al-Amlak (the King of Kings) for there is no king but Allah.  

مسلم:٢١٤٣bحَدَّثَنَا مُحَمَّدُ بْنُ رَافِعٍ حَدَّثَنَا عَبْدُ الرَّزَّاقِ أَخْبَرَنَا مَعْمَرٌ عَنْ هَمَّامِ بْنِ مُنَبِّهٍ قَالَ هَذَا مَا حَدَّثَنَا أَبُو هُرَيْرَةَ

عَنْ رَسُولِ اللَّهِ ﷺ فَذَكَرَ أَحَادِيثَ مِنْهَا وَقَالَ رَسُولُ اللَّهِ ﷺ أَغْيَظُ رَجُلٍ عَلَى اللَّهِ يَوْمَ الْقِيَامَةِ وَأَخْبَثُهُ وَأَغْيَظُهُ عَلَيْهِ رَجُلٌ كَانَ يُسَمَّى مَلِكَ الأَمْلاَكِ لاَ مَلِكَ إِلاَّ اللَّهُ  

ahmad:8176

The most wretched person in the sight of Allah on the Day of Resurrection and the worst person and target of His wrath would of the person who is called Malik al-Amlak (the King of Kings) for there is no king but Allah. (Using translation from Muslim 2143b)   

أحمد:٨١٧٦

وَقَالَ رَسُولُ اللهِ ﷺ أَغْيَظُ رَجُلٍ عَلَى اللهِ يَوْمَ الْقِيَامَةِ وَأَخْبَثُهُ وَأَغْيَظُهُ عَلَيْهِ رَجُلٌ كَانَ يُسَمَّى مَلِكَ الْأَمْلَاكِ لَا مَلِكَ إِلَّا اللهُ ﷻ