we did indeed give moses nine manifest signs you can enquire from the children of israel. when he came to them pharaoh said to him moses i can see that you are bewitched.
ولقد آتينا موسى تسع آيات بينات فاسأل بني إسرائيل إذ جاءهم فقال له فرعون إني لأظنك يا موسى مسحورا