مَلِكِ النَّاسِ

مَلِكِ النَّاسِ is a phrase (شِبْهُ الجُمْلَةِ) consisting of a possessive nominal compound

Phrase	Noun / Noun		Noun		Noun
شِبْهُ الجُمْلَةِ	مُضَافٌ وَ مُضَافٌ إِلَيْهِ		مُضَافٌ إِلَيْهِ		مُضَافٌ
Phrase	Possessive compound		Possessive noun / owner		Noun possessed / owned

	مَلِكِ النَّاسِ	=	النَّاسِ	+	مَلِكِ
	owner/king of the people/mankind		the people/mankind		owner/king/possesser of

Surah/	Below is the only verse in the holy Quran containing the compound	مَلِكِ النَّاسِ
Verse

114-2	The Owner/King of mankind	مَلِكِ النَّاسِ

Valuable resources:

مَلِكِ النَّاسِ occurrence