52:38
أَمْ لَهُمْ سُلَّمٌ يَسْتَمِعُونَ فِيهِ ۖ فَلْيَأْتِ مُسْتَمِعُهُم بِسُلْطَـٰنٍ مُّبِينٍ
am lahum sullamun yastamiʿūna fīhi falyati mus'tamiʿuhum bisul'ṭānin mubīnin
Do they have a ladder to climb, in order to eavesdrop [on Heaven’s secrets]? Let their eavesdropper produce clear proof.
Or have they a stairway (to heaven), by means of which they listen (to the talks of the angels)? Then let their listener produce some manifest proof.