On a Straight Path (i.e. on Allah's religion of Islamic Monotheism).
18 Maulana Mohammad Ali
Surely thou art one of the messengers,
19 Mohammad Habib Shakir
On a right way.
20 Mohammed Marmaduke William Pickthall
On a straight path,
21 Muhammad Sarwar
and that you follow the right path.
22 Qaribullah & Darwish
upon a Straight Path.
23 Safi-ur-Rahman al-Mubarakpuri
On the straight path.
24 Wahiduddin Khan
on a straight path,
25 Talal Itani
On a straight path.
26 Tafsir jalalayn
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].
27 Tafseer Ibn Kathir
are one of the Messengers, on the straight path.
means, following a straight methodology and religion, and an upright Law.