Quran 16:103 — The Bee (Al-Nahl)

We are fully aware that they say, "A human being is teaching him!" The tongue of the source they hint at is non-Arabic, and this is a perfect Arabic tongue.

[16:102] Say, "The Holy Spirit has brought it down from your Lord, truthfully, to assure those who believe, and to provide a beacon and good news for the submitters."

[16:104] Surely, those who do not believe in GOD's revelations, GOD does not guide them. They have incurred a painful retribution.