magicians' conversion

قَالَ فِرْعَوْنُ ءَامَنتُم بِهِۦ قَبْلَ أَنْ ءَاذَنَ لَكُمْ ۖ إِنَّ هَـٰذَا لَمَكْرٌ مَّكَرْتُمُوهُ فِى ٱلْمَدِينَةِ لِتُخْرِجُوا۟ مِنْهَآ أَهْلَهَا ۖ فَسَوْفَ تَعْلَمُونَ

Said Pharaoh, "You believed in him before I gave you permission. Indeed, this is a conspiracy which you conspired in the city to expel therefrom its people. But you are going to know.

لَأُقَطِّعَنَّ أَيْدِيَكُمْ وَأَرْجُلَكُم مِّنْ خِلَـٰفٍ ثُمَّ لَأُصَلِّبَنَّكُمْ أَجْمَعِينَ

I will surely cut off your hands and your feet on opposite sides; then I will surely crucify you all."