وَماذا عَلَيهِم لَو آمَنوا بِاللَّهِ وَاليَومِ الآخِرِ وَأَنفَقوا مِمّا رَزَقَهُمُ اللَّهُ ۚ وَكانَ اللَّهُ بِهِم عَليمًا

What harm would befall them if they believed in God and the Last Day, and donated from what God has provided them? God is fully aware of them.