True righteousness (birr) requires material sacrifice

لَن تَنَالُوا۟ ٱلْبِرَّ حَتَّىٰ تُنفِقُوا۟ مِمَّا تُحِبُّونَ ۚ وَمَا تُنفِقُوا۟ مِن شَىْءٍ فَإِنَّ ٱللَّهَ بِهِۦ عَلِيمٌ

Never will you attain the good [reward] until you spend [in the way of Allāh] from that which you love. And whatever you spend - indeed, Allāh is Knowing of it.