Surah Qaf 50:5

بَلْ كَذَّبُوا۟ بِٱلْحَقِّ لَمَّا جَآءَهُمْ فَهُمْ فِىٓ أَمْرٍ مَّرِيجٍ

But they denied the truth when it came to them, so they are in a confused condition.

Translation: Saheeh International

Tafsir

Nay but they denied the truth the Qur’ān when it came to them and so they with regard to the Prophet s and the Qur’ān are now in a confounded situation a troubled one. For on one occasion they said that he was ‘A sorcerer!’ cf. Q. 384 and that his statements were ‘Nothing but manifest sorcery!’ cf. Q. …

Excerpt from Tafsir al-Jalalayn, commentary on 50:5, via Quran.com. The reader has the full commentary and 9 more tafsirs.