How to distinguish Arbi and Farsi words used in urdu ?

Re: How to distinguish Arbi and Farsi words used in urdu ?

another rule is the use of Tarkeeb-e-Izaafi, like Gulshan-e-Iqbal yaa Sag-e-Lailaa ... this is Farsi Grammar and should not be used for Arabic words .. that is why we say Shab-e-Qadar but then we say Lailatul Qadar when using arabic words

although at moments I've seen it used for Arabic words too