Al-Baqarah 2:264

يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُواْ لَا تُبۡطِلُواْ صَدَقَٰتِكُم بِٱلۡمَنِّ وَٱلۡأَذَىٰ كَٱلَّذِي يُنفِقُ مَالَهُۥ رِئَآءَ ٱلنَّاسِ وَلَا يُؤۡمِنُ بِٱللَّهِ وَٱلۡيَوۡمِ ٱلۡأٓخِرِۖ فَمَثَلُهُۥ كَمَثَلِ صَفۡوَانٍ عَلَيۡهِ تُرَابٞ فَأَصَابَهُۥ وَابِلٞ فَتَرَكَهُۥ صَلۡدٗاۖ لَّا يَقۡدِرُونَ عَلَىٰ شَيۡءٖ مِّمَّا كَسَبُواْۗ وَٱللَّهُ لَا يَهۡدِي ٱلۡقَوۡمَ ٱلۡكَٰفِرِينَ 264

O you who have believed, do not invalidate your charities with reminders or injury as does one who spends his wealth [only] to be seen by the people and does not believe in Allah and the Last Day. His example is like that of a [large] smooth stone upon which is dust and is hit by a downpour that leaves it bare. They are unable [to keep] anything of what they have earned. And Allah does not guide the disbelieving people