Surah Al-'Ankabut — Ayah 18 (29:18)

English translation (Saheeh International)

And if you [people] deny [the message] - already nations before you have denied. And there is not upon the Messenger except [the duty of] clear notification.¹

1. - Commentators have differed over this verse - whether it is a continuation of the words of Prophet Abraham or words of comfort given by Allāh to Prophet Muḥammad (ﷺ), which according to context seems more likely.

Brief commentary

O idolaters, if you deny what Muhammad (peace be upon him) brought, then nations before you also denied, such as the nation of Noah, and Aad and Thamud. It is only upon the Messenger to clearly convey, and he has conveyed what his Lord ordered him to convey to you.