وَمَا كَانَ صَلَاتُهُمۡ عِندَ ٱلۡبَيۡتِ إِلَّا مُكَآءٗ وَتَصۡدِيَةٗۚ فَذُوقُواْ ٱلۡعَذَابَ بِمَا كُنتُمۡ تَكۡفُرُونَ
And their prayers at the House/Home was not except whistling by mouth and echoing/prolonging/clapping ,so taste/experience the torture with what you were disbelieving
Author: Literal