Surah Ash-Shura (The Consultation), Verse 51

وَمَا كَانَ لِبَشَرٍ اَنْ یُّكَلِّمَهُ اللّٰهُ اِلَّا وَحْیًا اَوْ مِنْ وَّرَآئِ حِجَابٍ اَوْ یُرْسِلَ رَسُوْلًا فَیُوْحِیَ بِاِذْنِهٖ مَا یَشَآءُ اِنَّهٗ عَلِیٌّ حَكِیْمٌ ۟

Wa maa kaana libasharin any yukallimahul laahu illaa wahyan aw minw waraaa'i hijaabin aw yursila Rasoolan fa yoohiya bi iznihee maa yashaaa'; innahoo 'Aliyyun Hakeem

“It is not fitting for a man that Allah should speak to him except by inspiration, or from behind a veil, or by the sending of a messenger to reveal, with Allah's permission, what Allah wills: for He is Most High, Most Wise.”

Quran 42:51 (Yusuf Ali Translation)