Al-Baqarah 2:271

إِن تُبۡدُواْ ٱلصَّدَقَٰتِ فَنِعِمَّا هِيَۖ وَإِن تُخۡفُوهَا وَتُؤۡتُوهَا ٱلۡفُقَرَآءَ فَهُوَ خَيۡرٞ لَّكُمۡۚ وَيُكَفِّرُ عَنكُم مِّن سَيِّـَٔاتِكُمۡۗ وَٱللَّهُ بِمَا تَعۡمَلُونَ خَبِيرٞ 271

If you disclose your charitable expenditures, they are good; but if you conceal them and give them to the poor, it is better for you, and He will remove from you some of your misdeeds [thereby]. And Allah, with what you do, is [fully] Acquainted