﴿ وَٱلَّذِينَ يُؤْتُونَ مَآ ءَاتَوا۟ وَّقُلُوبُهُمْ وَجِلَةٌ أَنَّهُمْ إِلَىٰ رَبِّهِمْ رَٰجِعُونَ ﴾

“and who give whatever they [have to] give with their hearts trembling at the thought that unto their Sustainer they must return:”

Please check ayah 23:61 for complete tafsir.