Surah Al-A'raf Verse 90

وَقَالَ الْمَلَأُ الَّذِينَ كَفَرُوا مِنْ قَوْمِهِ لَئِنِ اتَّبَعْتُمْ شُعَيْبًا إِنَّكُمْ إِذًا لَخَاسِرُونَ

Said the eminent ones who disbelieved among his people, "If you should follow Shu'ayb, indeed, you would then be losers