DO NOT PRAISE AHLUL BID'AH
Shaykh Salih al-Fawzan حفظه الله ورعاه said
“ It is obligatory upon a person that he does not dignify, praise and speak highly of the people of innovation”
Source:إتحاف القاري بالتعليقات على شرح السنة -الجزء الثاني ص ٢٦٢
Translator: Abu 'Abdullah Mujaahid Al-Jamaiki