The story of Musa alayhi salam and fir'awn.

 The story of Musa alayhi salam and fir'awn. 

As we know of the story and what happened. 

Allah S.w.T tested the people of firawn with nine signs so that they might change and fir'awn will allow the children of israel to follow them. 

Allah says, 

Al-Isra' 17:101

And We had certainly given Moses nine evident signs, so ask the Children of Israel [about] when he came to them and Pharaoh said to him, "Indeed I think, O Moses, that you are affected by magic."

Among the signs was their water turns into blood, frogs and locust spreading in the homes, the storm was windy, no food and crops dying yet they say this is the evil of Moses and curse he had brought but yet fir'awn asked Moses to call his lord to take this affliction from them and will allow the children of israel to follow him. 

But he went against his word until one night, Allah told moses to take the children of israel away. 

Moses alayhi salam prayed to Allah to make firawn and his people's heart to harden and not to see the truth 

Allah says, 

Yunus 10:88

And Moses said, "Our Lord, indeed You have given Pharaoh and his establishment splendor and wealth in the worldly life, our Lord, that they may lead [men] astray from Your way. Our Lord, obliterate their wealth and harden their hearts so that they will not believe until they see the painful punishment."

So Allah destroyed firawn with his people his misled drowning them in the Red Sea. 

Allah says, 

Yunus 10:75

Then We sent after them Moses and Aaron to Pharaoh and his establishment with Our signs, but they behaved arrogantly and were a criminal people.

So when the came, firawn said they want power and not messengers 

Allah says, 

Yunus 10:78

They said, "Have you come to us to turn us away from that upon which we found our fathers and so that you two may have grandeur in the land? And we are not believers in you."

All the disbelievers used to tell their messengers, 

Have you come to take us from what our fathers used to worship.