Surah Ash-Shu'ara 26:226

وَأَنَّهُمْ يَقُولُونَ مَا لَا يَفْعَلُونَ

And that they say what they do not do? -

Translation: Saheeh International

Tafsir

and that they say we do what they do not do? in other words that they lie.

Excerpt from Tafsir al-Jalalayn, commentary on 26:226, via Quran.com. The reader has the full commentary and 9 more tafsirs.