Bhagavad Gita 17.20

दाताव्यमिति यद्दनं दीयतेऽनुपकारिणे |
देशे काले च पात्रे च तद्दनं सात्विकं स्मृतम्

Translation

Charity given to a worthy person simply because it is right to give, without consideration of anything in return, at the proper time and in the proper place, is stated to be in the mode of goodness.