Sura al-Baqara 2:271

إِن تُبْدُوا۟ ٱلصَّدَقَٰتِ فَنِعِمَّا هِىَ وَإِن تُخْفُوهَا وَتُؤْتُوهَا ٱلْفُقَرَآءَ فَهُوَ خَيْرٌ لَّكُمْ وَيُكَفِّرُ عَنكُم مِّن سَيِّـَٔاتِكُمْ وَٱللَّـهُ بِمَا تَعْمَلُونَ خَبِيرٌ

in tubdū l-ṣadaqāti fa-niʿimmā hiya wa-in tukhfūhā wa-tuʾtūhā l-fuqarāʾa fa-huwa khayrun la-kum wa-yukaffiru ʿankum min sayyiʾātikum wallāhu bi-mā taʿmalūna khabīrun

If ye disclose (acts of) charity, even so it is well, but if ye conceal them, and make them reach those (really) in need, that is best for you: It will remove from you some of your (stains of) evil. And Allah is well acquainted with what ye do.