وَإِن تُكَذِّبُواْ فَقَدۡ كَذَّبَ أُمَمٞ مِّن قَبۡلِكُمۡۖ وَمَا عَلَى ٱلرَّسُولِ إِلَّا ٱلۡبَلَٰغُ ٱلۡمُبِينُ

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

"And if ye reject (the Message), so did generations before you: and the duty of the messenger is only to preach publicly (and clearly)."

— Al-Ankabut (ٱلْعَنْكَبُوت), 29:18