﴿ وَأَضَلَّ فِرْعَوْنُ قَوْمَهُۥ وَمَا هَدَىٰ ﴾

“because Pharaoh had led his people astray and had not guided [them] aright.”

(And Pharaoh led his folk astray) Pharaoh destroyed his people in the sea, (he did not guide them) he did not save them; it is also said that this means: he misguided them regarding Allah's religion and did not guide them to the Truth.