﴿ قَالَ ٱلْمَلَأُ ٱلَّذِينَ ٱسْتَكْبَرُوا۟ مِن قَوْمِهِۦ لِلَّذِينَ ٱسْتُضْعِفُوا۟ لِمَنْ ءَامَنَ مِنْهُمْ أَتَعْلَمُونَ أَنَّ صَٰلِحًۭا مُّرْسَلٌۭ مِّن رَّبِّهِۦ ۚ قَالُوٓا۟ إِنَّا بِمَآ أُرْسِلَ بِهِۦ مُؤْمِنُونَ ﴾

“The great ones among his people, who gloried in their arrogance towards all who were deemed weak, said unto the believers among them: "Do you [really] know that salih has been sent by his Sustainer?" They answered: "Verily, we believe in the message which he bears."”

Please check ayah 7:78 for complete tafsir.