Minimum Requirements For Salvation [5:69] Surely, those who believe, those who are Jewish, the converts, and the Christians; any of them who (1) believe in GOD and (2) believe in the Last Day, and (3) lead a righteous life, have nothing to fear, nor will they grieve.

[2:111] Some have said, "No one will enter Paradise except Jews or Christians!" Such is their wishful thinking. Say, "Show us your proof, if you are right."Submission: The Only Religion[2:112] Indeed, those who submit themselves absolutely to GOD alone, while leading a righteous life, will receive their recompense from their Lord; they have nothing to fear, nor will they grieve.*

*2:111-112 See 2:62 and 5:69.  

 
Surely, those who believe,
those who are Jewish,
the Christians,
and the converts;
anyone who
(1) believes in GOD, and
(2) believes in the Last Day, and
(3) leads a righteous life,
will receive their recompense from their Lord;
they have nothing to fear,
nor will they grieve.

Final Testament 2:62

What does it mean when we say, “We believe in God alone”? 

It means that we believe that with God alone belongs all power. It means that we believe that no one and nothing has any power in our lives, beside God to harm us or benefit us in any way. It means that we put our trust and confidence in God alone for all our needs, wants, and desires. 

It means that we believe that God alone is in absolute control of our lives, and that nothing happens outside of God’s control and will. It means that we believe that God is Omnipresent, Omniscient and Omnipotent. He is everywhere; He knows everything and is in absolute control of everything.

That’s why our first commandment is “There is no god, beside GOD”. This is the same message that has been preached by Abraham, Isaac, Jacob, Jesus, Joseph and all prophets, messengers and scriptures that have been sent by God.

[9:116] To GOD belongs the sovereignty of the heavens and the earth. He controls life and death. You have none beside GOD as a Lord and Master.

[6:59] With Him are the keys to all secrets; none knows them except He. He knows everything on land and in the sea. Not a leaf falls without His knowledge. Nor is there a grain in the depths of the soil. Nor is there anything wet or dry, that is not recorded in a profound record.

[28:88] You shall not worship beside GOD any other god. There is no other god beside Him. Everything perishes except His presence. To Him belongs all sovereignty, and to Him you will be returned.