AL BAQARAH — Ayat 271

إِن تُبْدُواْ الصَّدَقَاتِ فَنِعِمَّا هِيَ وَإِن تُخْفُوهَا وَتُؤْتُوهَا الْفُقَرَاء فَهُوَ خَيْرٌ لُّكُمْ وَيُكَفِّرُ عَنكُم مِّن سَيِّئَاتِكُمْ وَاللّهُ بِمَا تَعْمَلُونَ خَبِيرٌ

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.