Surah Al-An'am 6:126

وَهَـٰذَا صِرَٰطُ رَبِّكَ مُسْتَقِيمًا ۗ قَدْ فَصَّلْنَا ٱلْـَٔايَـٰتِ لِقَوْمٍ يَذَّكَّرُونَ

And this is the path of your Lord, [leading] straight. We have detailed the verses for a people who remember.

Translation: Saheeh International

Tafsir

And this path that you follow O Muhammad (s) is the path of your Lord a straight one with no crookedness therein mustaqīman ‘straight’ is in the accusative because it is a circumstantial qualifier emphasising the previous statement and it is operated by the import of the demonstrative noun hādhā ‘this’. …

Excerpt from Tafsir al-Jalalayn, commentary on 6:126, via Quran.com. The reader has the full commentary and 9 more tafsirs.