Surah Nooh, Verse 1
بِسْمِ ٱللَّهِ ٱلرَّحْمَٰنِ ٱلرَّحِيمِ إِنَّآ أَرْسَلْنَا نُوحًا إِلَىٰ قَوْمِهِۦٓ أَنْ أَنذِرْ قَوْمَكَ مِن قَبْلِ أَن يَأْتِيَهُمْ عَذَابٌ أَلِيمٌۭ
Translation — Sahih International
Indeed, We sent Noah to his people, [saying], "Warn your people before there comes to them a painful punishment."
Source
Kur'an-ı Kerim, Nûh Suresi 71:1
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/71-suresi-1-ayet