Surah Al-'Ankabut, Ayah 18
Quran 29:18 · The Spider · Makki · Para 20 · Page 398
وَاِنْ تُكَذِّبُوْا فَقَدْ كَذَّبَ اُمَمٌ مِّنْ قَبْلِكُمْ ؕ وَمَا عَلَی الرَّسُوْلِ اِلَّا الْبَلٰغُ الْمُبِیْنُ ۟
Transliteration
Wa-in tukaththiboo faqad kaththabaomamun min qablikum wama AAala arrasooliilla albalaghu almubeen
Saheeh International
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.
Al-Mukhtasar fi Tafsir
O idolaters, if you deny what Muhammad (peace be upon him) brought, then nations before you also denied, such as the nation of Noah, and Aad and Thamud. It is only upon the Messenger to clearly convey, and he has conveyed what his Lord ordered him to convey to you.
Tafsir Ibn Kathir (abridged)
Explains 29:16–29:18 together — read it on 29:16