Al-A'raf 7:75

قَالَ ٱلۡمَلَأُ ٱلَّذِينَ ٱسۡتَكۡبَرُواْ مِن قَوۡمِهِۦ لِلَّذِينَ ٱسۡتُضۡعِفُواْ لِمَنۡ ءَامَنَ مِنۡهُمۡ أَتَعۡلَمُونَ أَنَّ صَٰلِحٗا مُّرۡسَلٞ مِّن رَّبِّهِۦۚ قَالُوٓاْ إِنَّا بِمَآ أُرۡسِلَ بِهِۦ مُؤۡمِنُونَ 75

Said the eminent ones who were arrogant among his people to those who were oppressed - to those who believed among them, "Do you [actually] know that Salih is sent from his Lord?" They said, "Indeed we, in that with which he was sent, are believers