To be Righteous as
God is Righteous.
In my humble opinion I do not think any Muslim will tell you that they can be righteous as
God is. For there is nothing like unto Him.
His attributes and names are different to ours. check 42:11.
Out of curiosity, do you differentiate between sin and mistakes, like for example you said:
sin is something that is done by choice
what if someone breaks a rule of God by mistake.