Prophet Hud - 11:12
"Perhaps your chest will be constricted and you will abandon some of what has been revealed to you because they say, "Should not a treasure have descended to him, or an angel with him?"You are only a warner; Allah is the Controller of all things."
They also asked their previous messengers to bring the angels:
The Believers/23:23
"We sent Noah to his people and he said: "My people, worship Allah. You have no god but Him. Will you not respect Him and act righteously?"
The Believers/23:24
"The prominent disbelievers of his people said, "This is nothing but a man like you. He wants to rule over you. Had Allah willed, He could have sent down an angel. We did not hear anything like this from our first ancestors."
Explained in Detail/41:13
"If they turn away, say, "I warned you with a thunderbolt like the thunderbolt of Ad and Thamud."
Explained in Detail/41:14
"Messengers went to them from before them and behind them, saying: "Do not serve or serve other than Allah". They said, "If our Lord had willed, He could have sent down an angel. Therefore we do not believe in the message you bring"."
The Ornaments of Gold/43:51
"Pharaoh said to his people: "O my people, does not the government of Egypt and the rivers flowing under me belong to me? Do you not see?"
The Ornaments of Gold/43:52
Or am I not superior to this man who is vile and unable to speak?
The Ornaments of Gold/43:53
Why is he not given a treasure of gold, or why do not angels come to work with him?
The Rocky Tract/15:6
"They said: "O you who have been sent down the Message, you are a madman."
The Rocky Tract/15:7
Bring us the angels if you are truthful.