قَالَ فِرْعَوْنُ ءَامَنتُم بِهِۦ قَبْلَ أَنْ ءَاذَنَ لَكُمْ ۖ إِنَّ هَـٰذَا لَمَكْرٌ مَّكَرْتُمُوهُ فِى ٱلْمَدِينَةِ لِتُخْرِجُوا۟ مِنْهَآ أَهْلَهَا ۖ فَسَوْفَ تَعْلَمُونَ
Qaala Fir'awnu aamantum bihee qabla an aazana lakum; inna haaza lamakrum makartumoohu filmadeenati litukhrijoo minhaaa ahlahaa fasawfa ta'almoon
Firʻawn berkata, "Apakah kamu beriman kepadanya sebelum aku memberi izin kepadamu? Sesungguhnya (perbuatan ini) adalah suatu muslihat yang telah kamu rencanakan di dalam kota ini untuk mengeluarkan penduduknya darinya; maka kelak kamu akan mengetahui (akibat perbuatanmu ini);
Pharaoh said, "You have believed in him before I gave you permission? This is surely a scheme you plotted in the city to drive its people out. Soon you will know.
Pharaoh meets a conversion by raising a question of permission: the sorcerers believed before he authorised it. Only then does he reach for a conspiracy, accusing them of arranging the contest with Musa in order to take the city from its people, a charge the story has already answered, since Pharaoh was the one who summoned them. The threat that follows concedes the argument is lost.