وَمَا مَنَعَهُمْ أَن تُقْبَلَ مِنْهُمْ نَفَقَـٰتُهُمْ إِلَّآ أَنَّهُمْ كَفَرُوا۟ بِٱللَّهِ وَبِرَسُولِهِۦ وَلَا يَأْتُونَ ٱلصَّلَوٰةَ إِلَّا وَهُمْ كُسَالَىٰ وَلَا يُنفِقُونَ إِلَّا وَهُمْ كَـٰرِهُونَ Qur’an Al-Tawba (9:54)Wama manaAAahum an tuqbala minhum nafaqatuhum illa annahum kafaroo biAllahi wabirasoolihi wala yatoona alssalata illa wahum kusala wala yunfiqoona illa wahum karihoona
Lit., "nothing prevents their spending from being accepted from them except that...", etc.
Lit., "and they do not approach prayer without being reluctant" - i.e., when they participate in acts of worship they do it only for the sake of outward conformity, and not out of inner conviction.