Surah Al-Anbya 21:36

وَإِذَا رَءَاكَ ٱلَّذِينَ كَفَرُوٓا۟ إِن يَتَّخِذُونَكَ إِلَّا هُزُوًا أَهَـٰذَا ٱلَّذِى يَذْكُرُ ءَالِهَتَكُمْ وَهُم بِذِكْرِ ٱلرَّحْمَـٰنِ هُمْ كَـٰفِرُونَ

And when those who disbelieve see you, [O Muḥammad], they take you not except in ridicule, [saying], "Is this the one who mentions [i.e., insults] your gods?" And they are, at the mention of the Most Merciful, disbelievers.

Translation: Saheeh International

Tafsir

And whenever the disbelievers see you they only take you in derision that is as one to be derided saying ‘Is this the one who mentions your gods?’ that is the one who derides them? And yet when it comes to the mention of the Compassionate One to them they hum repeated for emphasis are disbelieving of it saying ‘We do …

Excerpt from Tafsir al-Jalalayn, commentary on 21:36, via Quran.com. The reader has the full commentary and 9 more tafsirs.