(Al-Ahraf) 7 : 125
قَالُوا إِنَّا إِلَىٰ رَبِّنَا مُنْقَلِبُونَ
They said: "Indeed, we are the ones who will return to our Lord".
The sorcerers came to Pharaoh expecting a reward from him. But upon seeing the Sign from the Lord through Messenger Moses, they fell in prostration and declared their belief openly and boldly. They also became ready to accept any punishment from Pharaoh including the death penalty and wished to become martyrs.