Surah Ash-Shu'ara, Verse 103

إِنَّ فِي ذَٰلِكَ لَأٓيَةٗۖ وَمَا كَانَ أَكۡثَرُهُم مُّؤۡمِنِينَ١٠٣

inna fī dhālika laāyatan wamā kāna aktharuhum mu'minīna

Indeed in that is a sign, but most of them were not to be believers.