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.
The Saheeh International Quran Translation
وَإِن تُكَذِّبُوا۟ فَقَدْ كَذَّبَ أُمَمٌ مِّن قَبْلِكُمْ وَمَا عَلَى ٱلرَّسُولِ إِلَّا ٱلْبَلَٰغُ ٱلْمُبِينُAnd 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.