They said, "Never will we prefer you over what has come to us of clear proofs and [over] He who created us.1 So decree whatever you are to decree. You can only decree for this worldly life.
Translation: Saheeh International (English)
1 This phrase has also been interpreted as an oath, i.e., "...by Him who created us."
The magicians said to Pharaoh: We shall never prefer following you - O Pharaoh - to following the clear signs that have come to us. We will never prefer you to Allah Who created us. So do whatever you want to us: you only have power over us in this present transient life, and your power will soon vanish.