Al-Isra 45

وَإِذَا قَرَأْتَ ٱلْقُرْءَانَ جَعَلْنَا بَيْنَكَ وَبَيْنَ ٱلَّذِينَ لَا يُؤْمِنُونَ بِٱلْـَٔاخِرَةِ حِجَابًا مَّسْتُورًا

wa-idhā qarata l-qur'āna jaʿalnā baynaka wabayna alladhīna lā yu'minūna bil-ākhirati ḥijāban mastūran

And when you recite the Qur’ān, We put between you and those who do not believe in the Hereafter a concealed partition.