Tafsir of Ghafir 40:24

إلى فرعون

to Fir`awn, (who was the king of the Copts of Egypt).

وهامان

Haman, (who was his adviser).

وقارون

and Qarun, (who was the richest trader among the people of his time).

فقالوا ساحر كذاب

but they called (him): "A sorcerer, liar!'' means, they rejected him and thought he was a sorcerer, a madman and an illusionist who was telling lies about having been sent by Allah. This is like the Ayah:

كذلك ما أتى الذين من قبلهم من رسول إﻻ قالوا سحر أو مجنون

أتواصوا به بل هم قوم طغون

Likewise, no Messenger came to those before them but they said: "A sorcerer or a madman!'' Have they transmitted this saying to these? Nay, they are themselves a people transgressing beyond bounds! (51:52-53)