Bhagavad Gita 17.20

दातव्यमिति यद्दानं दीयतेऽनुपकारिणे ।
देशे काले च पात्रे च तद्दानं सात्त्विकं स्मृतम् ॥

dātavyam-iti yad-dānaṃ dīyate’nupakāriṇe
deśe kāle ca pātre ca tad-dānaṃ sāttvikaṃ smṛtam – 20

Any gift offered considering it is noble to give, and given in the right place, on the right occasion, to the right recipient, looking for no reciprocal benefit, is deemed sāttvika dāna.