What is the ruling on whistling with the mouth?
Machine translationRead the Arabic original
The Shaykh : It has already been answered that whistling with the mouth is from the worship of the polytheists, [Al-Anfal 8:35] meaning: whistling, clapping.
And their prayer at the House was not except whistling
وَمَا كَانَ صَلَاتُهُمْ عِنْدَ الْبَيْتِ إِلَّا مُكَاءًand clapping
وَتَصْدِيَةً
Source
www.al-albany.com
The Arabic text is copied verbatim from the original source, without any edits.