بِرَبِّ النَّاسِ

بِرَبِّ النَّاسِ is a phrase (شِبْهُ الجُمْلَةِ)

PhraseParticle / Noun / NounNounNoun Particle
شِبْهُ الجُمْلَةِجَارٌ وَمَجْرُوْرٌ وَهُوَ مُضَافٌ وَ مُضَافٌ إِلَيْهِمُضَافٌ إِلَيْهِاسْمٌ مَجْرُوْرٌ وَهُوَ مَضَافٌحَرْفُ جَرٍّ
PhraseCompoundPossessive NounGenitive noun + Noun possessedParticle of pulling down
  
بِرَبِّ النَّاسِ=النَّاسِ+رَبِّ+بِ
in the Nurturer of mankind,the people / mankind / menthe Nurturer ofin / with
Surah/Below is the only verse in the holy Quran containing the compoundبِرَبِّ النَّاسِ
Verse
114-1Say, I seek refuge with the Nurturer of mankindقُلْ أَعُوُذُ بِرَبِّ النَّاسِ

Valuable resources:

بِرَبِّ النَّاسِ occurrence

Learn Quranic Arabic online dvds

Download study materials, notebooks 1, 2, 3, notes etc