Surah Fussilat 41:52

قُلْ أَرَءَيْتُمْ إِن كَانَ مِنْ عِندِ ٱللَّهِ ثُمَّ كَفَرْتُم بِهِۦ مَنْ أَضَلُّ مِمَّنْ هُوَ فِى شِقَاقٍۭ بَعِيدٍ

Say, "Have you considered: if it [i.e., the Qur’ān] is from Allāh and you disbelieved in it, who would be more astray than one who is in extreme dissension?"

Translation: Saheeh International

Tafsir

Say ‘Consider this if it the Qur’ān is from God as the Prophet says and you disbelieve in it who — in other words none — will be further astray than one who is in extreme defiance?’ of the truth this third person singular address is used instead of ‘who will be further astray than you’ in order to point out their …

Excerpt from Tafsir al-Jalalayn, commentary on 41:52, via Quran.com. The reader has the full commentary and 9 more tafsirs.