Surah Ash-Shu'ara, ayah 8

إِنَّ فِي ذَٰلِكَ لَأٓيَةٗۖ وَمَا كَانَ أَكۡثَرُهُم مُّؤۡمِنِينَ ٨

Inna fī dhālika la'āyatan wamā kāna aktharuhum mu'minīn

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