A Munāfiq is a person who does Nifāq, i.e. who pretends to be a Muslim.
As the Muslim community grew, some people pretended to believe in Islam for worldly benefits.
A Munāfiq (pl. Munāfiqūn) is someone who outwardly practices Islam while inwardly concealing their disbelief, maybe even unknowingly.
A warning sign that you might be turning into a Munāfiq is if your private prayer is different than your public prayer.
person who pretends to be a Muslim