Ya-Sin Verse 4

upon the Straight Path.

on a straight path,

on a straight path;

on a straight path,

upon the straight path.

On a Straight Way.

on a Straight Way,

On a path that is straight, --

On the Straight Path.

on a straight path.

Upon a straight path.

(Standing) on the right and straight path.

On a straight/direct/balanced road/way.

On the Straight Path.

Most surely you are one of the Messengers

On a Straight Path (i.e. on Allah's religion of Islamic Monotheism).

Surely thou art one of the messengers,

On a right way.

On a straight path,

and that you follow the right path.

upon a Straight Path.

On the straight path.

on a straight path,

On a straight path.

on a (`al 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'n'] and the remainder [of the statement] is a response to the disbelievers' saying to him, `You have not been sent [by God]!' [Q. 13;43].

are one of the Messengers, on the straight path.

means, following a straight methodology and religion, and an upright Law.

تَنزِيلَ الْعَزِيزِ الرَّحِيمِ