Surah Al-Ankaboot Verse 18

وَإِن تُكَذِّبُوا فَقَدْ كَذَّبَ أُمَمٌ مِّن قَبْلِكُمْ ۖ وَمَا عَلَى الرَّسُولِ إِلَّا الْبَلَاغُ الْمُبِينُ

Wa in tukazziboo faqad kazzaba umamum min qablikum wa maa'alar Rasooli illal balaaghul mubeen

Translation / The Meaning

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.