Surah Al-Ma'arij 70:31

فَمَنِ ٱبْتَغَىٰ وَرَآءَ ذَٰلِكَ فَأُو۟لَـٰٓئِكَ هُمُ ٱلْعَادُونَ

But whoever seeks beyond that, then they are the transgressors -

Translation: Saheeh International

Tafsir

but whoever seeks beyond that those are the infringers who transgress the bounds of what is lawful stepping into what is unlawful;

Excerpt from Tafsir al-Jalalayn, commentary on 70:31, via Quran.com. The reader has the full commentary and 9 more tafsirs.