The Cow - 2:254
Believers, distribute out of what We have given you before the Day comes when there will be neither exchange nor friendship nor intercession. Those who disbelieve are the wrongdoers.
On that Day intercession will not be accepted:
The Prostration/32:4
It is Allah Who created the heavens and the earth and all that is between them in six days and then established all authority. There is for you no guardian (owner) or intercessor (intermediary) apart from Him. Do you not understand the admonition?
Prophet Jonah/10:18
"They leave Allah and serve those who can do them neither harm nor good, and say: "These will intercede for us with Allah". Say: "Do you inform Him of what Allah does not know in the heavens and the earth? He is Most High, far from what you associate partners with."
The Romans/30:12
On the Day when the Hour is realized, the criminals will be shocked.
The Romans/30:13
And none of their partners whom they used to associate will intercede for them; they will disbelieve in their partners.
The Companies/39:43
"Have they taken intercessors besides Allah? Say, "Even if they have nothing and cannot think"?"
The Companies/39:44
"Say, "To Allah belongs all intercession."To Him belongs the government of the heavens and the earth. Then to Him you will be returned."
The Forgiver/40:18
Warn them of the Day that is coming, then their hearts will be in their throats and they will swallow. For the wrongdoers there will be neither a friend nor an intercessor.
The Cattle/6:70
Leave those who take their religion as a pastime and are deceived by the life of this world. Remind them with this (the Qur´an) so that a person may not suffer the disastrous consequences of what he has earned. He has no Owner and intercessor except Allah. Even if he gives any ransom, it will not be accepted from him. These are the ones who suffer the disastrous consequences of what they have earned; they deserve a drink of boiling water and a painful torment because of their disbelief.