Surah Ya-Sin 36:4

عَلَىٰ صِرَٰطٍ مُّسْتَقِيمٍ

On a straight path.

Translation: Saheeh International

Tafsir

on a ‘alā is semantically connected to the preceding statement straight path that is you follow the way of the prophets before you enjoining the affirmation of God’s Oneness and guidance the emphasis expressed by the oath in ‘by the definitive Qur’ān’ and the remainder of the statement is a response to the …

Excerpt from Tafsir al-Jalalayn, commentary on 36:4, via Quran.com. The reader has the full commentary and 9 more tafsirs.