Surah Fussilat 41:42

لَّا يَأْتِيهِ ٱلْبَـٰطِلُ مِنۢ بَيْنِ يَدَيْهِ وَلَا مِنْ خَلْفِهِۦ ۖ تَنزِيلٌ مِّنْ حَكِيمٍ حَمِيدٍ

Falsehood cannot approach it from before it or from behind it; [it is] a revelation from a [Lord who is] Wise and Praiseworthy.

Translation: Saheeh International

Tafsir

falsehood cannot approach it from before it or from behind it in other words there is no scripture before it or after it that contradicts it; it is a revelation from One Wise Praised that is to say from God the One Who is praised in His affair.

Excerpt from Tafsir al-Jalalayn, commentary on 41:42, via Quran.com. The reader has the full commentary and 9 more tafsirs.