رَبَّهُم

رَبَّهُم is a phrase (شِبْهُ الجُمْلَةِ), a compound consisting of a possessed noun and a possessive noun

PhraseNoun / NounNounNoun
شِبْهُ الجُمْلَةِمُضَافٌ وَ مُضَافٌ إِلَيْهِمُضَافٌ إِلَيْهِمُضَافٌ
PhrasePossessive compoundPossessive noun/ownerNoun possessed/owned
Lord of theirsرَبَّهُم=هُم+رَبَّ
their Lordtheirsthe Lord of
Surah/Below are the 16 verses in the holy Quran containing the compoundرَبَّهُم
Verse
3-198 
6-52 
11-60 
11-68 
16-50 
18-28 
18-55 
21-49 
30-33 
32-16 
35-18 
39-20 
39-23 
39-73 
67-12 
100-11Truly, that day, their Lord will be well acquainted with themإِنَّ رَبَّهُم بِهِمْ يَوْمَئِذٍ لَّخَبِيْرٌ