Surat Aţ-Ţūr - سورة الطور

أَمْ لَهُمْ سُلَّمٌ يَسْتَمِعُونَ فِيهِ ۖ فَلْيَأْتِ مُسْتَمِعُهُم بِسُلْطَانٍ مُّبِينٍ

: 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.