اِذۡ اَرۡسَلۡنَاۤ اِلَيۡهِمُ اثۡنَيۡنِ فَكَذَّبُوۡهُمَا فَعَزَّزۡنَا بِثَالِثٍ فَقَالُـوۡۤا اِنَّاۤ اِلَيۡكُمۡ مُّرۡسَلُوۡنَ
When (at first) We sent to them two Messengers, they rejected them both. Then We reinforced (them) with a third (Messenger). Then the three of them said: ‘Surely we have been sent to you.’