The Coalition - 33:6
The Prophet is closer to the believers than they are to themselves, and his wives are their mothers. According to the Book of Allah, the believers should give priority to those who are related to them among the emigrants. Except that you do good to your friends. These things are codified in this Book.
The most important criterion of belief:
The Cattle/6:82
Those who believe and do not mix their faith with wrongdoing, they deserve security and they have found the truth.
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.