Surah Al-A'raf 7:37

فَمَنْ أَظْلَمُ مِمَّنِ ٱفْتَرَىٰ عَلَى ٱللَّهِ كَذِبًا أَوْ كَذَّبَ بِـَٔايَـٰتِهِۦٓ ۚ أُو۟لَـٰٓئِكَ يَنَالُهُمْ نَصِيبُهُم مِّنَ ٱلْكِتَـٰبِ ۖ حَتَّىٰٓ إِذَا جَآءَتْهُمْ رُسُلُنَا يَتَوَفَّوْنَهُمْ قَالُوٓا۟ أَيْنَ مَا كُنتُمْ تَدْعُونَ مِن دُونِ ٱللَّهِ ۖ قَالُوا۟ ضَلُّوا۟ عَنَّا وَشَهِدُوا۟ عَلَىٰٓ أَنفُسِهِمْ أَنَّهُمْ كَانُوا۟ كَـٰفِرِينَ

And who is more unjust than one who invents about Allāh a lie or denies His verses? Those will attain their portion of the decree until, when Our messengers [i.e., angels] come to them to take them in death, they will say, "Where are those you used to invoke besides Allāh?" They will say, "They have departed from us," and will bear witness against themselves that they were disbelievers.

Translation: Saheeh International

Tafsir

And who — that is none — does greater evil than he who invents a lie against God by ascribing to Him a partner or a child or denies His signs? the Qur’ān. Those — their portion their lot of the Scripture of what has been inscribed as theirs in the Preserved Tablet al-lawh al-mahfūz in the way of provision term of life …

Excerpt from Tafsir al-Jalalayn, commentary on 7:37, via Quran.com. The reader has the full commentary and 9 more tafsirs.