Surah Al-A'raaf, Verse 59
لَقَدْ أَرْسَلْنَا نُوحًا إِلَىٰ قَوْمِهِۦ فَقَالَ يَٰقَوْمِ ٱعْبُدُوا۟ ٱللَّهَ مَا لَكُم مِّنْ إِلَٰهٍ غَيْرُهُۥٓ إِنِّىٓ أَخَافُ عَلَيْكُمْ عَذَابَ يَوْمٍ عَظِيمٍۢ
Translation — Sahih International
We had certainly sent Noah to his people, and he said, "O my people, worship Allah; you have no deity other than Him. Indeed, I fear for you the punishment of a tremendous Day.
Source
Kur'an-ı Kerim, A'râf Suresi 7:59
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/7-suresi-59-ayet