Mu’mens (believers) are those who believe in God and His messenger, then attain the status of having no doubt whatsoever, and strive with their money and their lives in the cause of God. These are the truthful ones.
إِنَّمَا المُؤمِنونَ الَّذينَ ءامَنوا بِاللَّهِ وَرَسولِهِ ثُمَّ لَم يَرتابوا وَجٰهَدوا بِأَموٰلِهِم وَأَنفُسِهِم فى سَبيلِ اللَّهِ أُولٰئِكَ هُمُ الصّٰدِقونَ
innamal muu’minoonal lazeena aamanoo billaahi wa Rasoolihee summa lam yartaaboo wa jaahadoo biamwaalihim wa anfusihim fee sabeelil laah; ulaaaika humus saadiqoon