اِنَّمَا الْمُؤْمِنُوْنَ الَّذِيْنَ اٰمَنُوْا بِاللّٰهِ وَرَسُوْلِهٖ ثُمَّ لَمْ يَرْتَابُوْا وَجَاهَدُوْا بِاَمْوَالِهِمْ وَاَنْفُسِهِمْ فِيْ سَبِيْلِ اللّٰهِ ۗ اُولٰۤىِٕكَ هُمُ الصّٰدِقُوْنَ ( الحجرات: ١٥ )
Innamal muu'minoonal lazeena aamanoo billaahi wa Rasoolihee summa lam yartaaboo wa jaahadoo biamwaalihim wa anfusihim fee sabeelil laah; ulaaaika humus saadiqoon (al-Ḥujurāt 49:15)
Sahih International:
The believers are only the ones who have believed in Allah and His Messenger and then doubt not but strive with their properties and their lives in the cause of Allah. It is those who are the truthful. (Al-Hujurat [49] : 15)
1 Mufti Taqi Usmani
Believers, in fact, are those who believe in Allah and His Messenger, then have no doubt, and struggle, with their riches and their lives, in the way of Allah. Those are the truthful.