As Saff Ayah 11

تُؤْمِنُونَ بِٱللَّهِ وَرَسُولِهِۦ وَتُجَـٰهِدُونَ فِى سَبِيلِ ٱللَّهِ بِأَمْوَٲلِكُمْ وَأَنفُسِكُمْ‌ۚ ذَٲلِكُمْ خَيْرٌ لَّكُمْ إِن كُنتُمْ تَعْلَمُونَ ١١ ?It is to? have faith in Allah and His Messenger, and strive in the cause of Allah with your wealth and your lives. That is best for you, if only you knew.