87:14

قَدْ أَفْلَحَ مَن تَزَكَّىٰ

Sahih International

He has certainly succeeded who purifieshimself

Bangla

নিশ্চয় সাফল্য লাভ করবে সে, যে শুদ্ধ হয়

And that’s what meant to be a Muslim, not because you born in a Muslim family so you are a Muslim. You know something, You check it and if it is better, then, you accept it and you leave your ‘sense of belonging’, your habits, your forefather’s way, your and that’s how you, a Muslim differentiate yourself from the Jaheel one. You make yourself a better one and thus you become successful.

May Allah make us among those.
Ameen.