Sheva - 34:33
"Those who were disempowered will say to those who were arrogant, "It was you. You were plotting day and night that we should be ungrateful to Allah and associate partners with Him."When they see the torment, they regret in their hearts. We have put shackles on the necks of the disbelievers. Are they not recompensed only for what they used to do?"
The punishment of those who associate partners with Allah:
The Women/4:48
Allah does not forgive associating partners with Him, but other than that He forgives to whom He wills. Whoever associates partners with Allah has committed a great insult.
The Women/4:116
Allah does not forgive associating partners with Him (if it continues until death), but He forgives the sins below that to whom He wills. Whoever associates partners with Allah has gone astray.
The Table Spread/5:72
"Those who say: "Allah is the Messiah, son of Mary,"have certainly disbelieved. But the Messiah said, "Children of Israel, serve Allah, my Lord and your Lord. Whoever associates partners with Allah, Allah forbids him Paradise, and his abode will be the Fire. And there will be no helper for the wrongdoers."
The Pilgrimage/22:31
Dedicate yourselves to Him alone, associating no partners with Allah. Whoever associates partners with Allah, it is as if he has fallen from the sky and has been seized by a vulture, or is being carried away by the wind in a deep fjord.
Luqman/31:13
"When Lokman advised his son, he said: "My dear son, do not associate partners with Allah; surely shirk (associating partners with God) is a great wrong."
The Companies/39:65
It has been revealed to you and those before you that if you associate partners, all that you do will be in vain and you will be of the losers.