تفسير : lo! thou art) o muhammad (of those sent) it is also said that this is an oath by which allah swore: he swore by the ya', the sin and the wise qur'an and he did also swear by the qur'an which exposits the lawful and the unlawful, the commands and prohibitions.
Jalāl al-Dīn al-Maḥallī
تفسير : you, o muhammad (s), are indeed of those sent [by god],