اَمۡ لَهُمۡ سُلَّمٌ يَّسۡتَمِعُوۡنَ فِيۡهِۚ فَلۡيَاۡتِ مُسۡتَمِعُهُمۡ بِسُلۡطٰنٍ مُّبِيۡنٍؕ‏

Or have they a stairway [into the heaven] upon which they listen? Then let their listener produce a clear authority