what does the word "RASAD-GAAH" [رصد گاہ] MEAN?

[Kinzz]

@muqawwee123

Quran main jab Shahab saqib ka tazkira aata hai to ek word aata hai Mursada jis ki root ye Rasad hai… Shayateen farishton ki baten sunene ke liye aasman main rasad (ghaat) laga ke bethte the aur unhe bhagane ke liye shahab e saqib ki maar karte the

Tou yeh urdu wala ho rasad hai?