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.
What those who associate partners do will be in vain:
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 Cattle/6:158
"Do they wait for the angels to come to them or for their Lord, or for some signs of their Lord? On the Day when some signs of your Lord come, they will not benefit him who has not believed before, or who has not gained any good in his faith. Say: "Wait, and we are waiting."
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.
The Congregation - Friday/62:5
The example of those who were given the Torah and did not fulfill it is like that of a donkey carrying books. Woe to the people who deny the signs of Allah. Allah does not guide the unjust people to the truth.
The Cattle/6:88
Such is the Guidance of Allah. He guides whomever He wills among His servants and/or whoever He wills to it. Had they associated partners, what they did would have been in vain.
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.