Surah As-Saf 61:7

وَمَنْ أَظْلَمُ مِمَّنِ ٱفْتَرَىٰ عَلَى ٱللَّهِ ٱلْكَذِبَ وَهُوَ يُدْعَىٰٓ إِلَى ٱلْإِسْلَـٰمِ ۚ وَٱللَّهُ لَا يَهْدِى ٱلْقَوْمَ ٱلظَّـٰلِمِينَ

And who is more unjust than one who invents about Allāh untruth while he is being invited to Islām. And Allāh does not guide the wrongdoing people.

Translation: Saheeh International

Tafsir

And who does — that is to say none does — greater wrong than he who invents lies against God by ascribing a partner and a child to Him and describing His signs as being sorcery when he is actually being summoned to submission to God? And God does not guide the wrongdoing folk the disbelieving folk.

Excerpt from Tafsir al-Jalalayn, commentary on 61:7, via Quran.com. The reader has the full commentary and 9 more tafsirs.