Re: Difference between Muslim and Momin
That’s the most complete understanding of the subject.
It’s very simple… Iqraar-um-bil-lisaan (saying the shahaadah with tongue) is becoming Muslim - but Tasdeeq-um-bil-Qalb (accepting it with your heart) is becoming a Momin…
A very exact ayah in Quran for the reference (The english translation actually does not do the justice with the words Islam and Iman so therefore, read the Arabic along with it):
49:14] The desert Arabs say, “We believe/have Iman.” Say, “Ye have no faith/Iman; but ye (only)say, ‘We have submitted our wills to Allah,’ For not yet has Faith entered your hearts. But if ye obey Allah and His Messenger, He will not belittle aught of your deeds: for Allah is Oft-Forgiving, Most Merciful.”