The Women - 4:59
Believers! Follow Allah and follow His messenger and those who are in charge of you, and if you disagree about anything, refer it to Allah and His messenger. If you believe in Allah and the Last Day. That is better for you and the best way of resolution.
The believers decide their affairs in consultation among themselves:
The Ants/27:38
"He said, "O my council, which of you can bring me his throne before they come to me as Muslims?"
Council/42:38
They respond to the call of their Lord, they observe the prayer, they decide their affairs in consultation among themselves, and they give out of what We have given them for charity.
The Women/4:83
If a rumor reaches them about security or danger, they spread it. If they had conveyed it to the messenger and the authorities among them, their experts would have evaluated it. Had it not been for the grace and mercy of Allah upon you, you would have followed Satan except a few of you.