Or have they a stairway [into the heaven] upon which they listen? Then let their listener produce a clear authority.
The Saheeh International Quran Translation
أَمْ لَهُمْ سُلَّمٌ يَسْتَمِعُونَ فِيهِ فَلْيَأْتِ مُسْتَمِعُهُم بِسُلْطَٰنٍ مُّبِينٍOr have they a stairway [into the heaven] upon which they listen? Then let their listener produce a clear authority.