وَإِن تُكَذِّبُوا۟ فَقَدْ كَذَّبَ أُمَمٌ مِّن قَبْلِكُمْ ۖ وَمَا عَلَى ٱلرَّسُولِ إِلَّا ٱلْبَلَـٰغُ ٱلْمُبِينُ
Wa in tukazziboo faqad kazzaba umamum min qablikum wa maa'alar Rasooli illal balaaghul mubeen
If you say this is a lie, [be warned that] other communities before you said the same. The messenger’s only duty is to give clear warning.’
And if you deny, nations before you have denied as well. The Messenger's duty is only to deliver the message clearly.