Prophetic supplication and reliance upon Allah (tawakkul)

إِنَّكَ إِن تَذَرْهُمْ يُضِلُّوا۟ عِبَادَكَ وَلَا يَلِدُوٓا۟ إِلَّا فَاجِرًا كَفَّارًا

Indeed, if You leave them, they will mislead Your servants and not beget except [every] wicked one and [confirmed] disbeliever.