أَلَّا تَعۡبُدُوٓاْ إِلَّا ٱللَّهَۚ إِنَّنِي لَكُم مِّنۡهُ نَذِيرٞ وَبَشِيرٞ

declaring: ‘Worship no one but Allah. I am indeed a warner to you from Him and a bearer of good news.