Quran 29:18 from Surah Al-Ankaboot on Divine Marvels.
وَإِن تُكَذِّبُواْ فَقَدۡ كَذَّبَ أُمَمٞ مِّن قَبۡلِكُمۡۖ وَمَا عَلَى ٱلرَّسُولِ إِلَّا ٱلۡبَلَٰغُ ٱلۡمُبِينُ
English translation: And if you deny then verily denied (the) nations before you before you And not (is) on the Messenger except the conveyance clear
Transliteration: wa-in tukadhibu faqad kadhaba umamun min qablikum wama ala al-rasuli illa al-balaghu al-mubinu