Ya-Sin 14

إِذْ أَرْسَلْنَآ إِلَيْهِمُ ٱثْنَيْنِ فَكَذَّبُوهُمَا فَعَزَّزْنَا بِثَالِثٍ فَقَالُوٓا۟ إِنَّآ إِلَيْكُم مُّرْسَلُونَ

idh arsalnā ilayhimu ith'nayni fakadhabūhumā faʿazzaznā bithālithin faqālū innā ilaykum mur'salūna

When We sent to them two but they denied them, so We strengthened [them] with a third, and they said, "Indeed, we are messengers to you."