Bhagavad Gita 17.20

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

dātavyamiti yaddānaṃ dīyate'nupakāriṇe |deśe kāle ca pātre ca taddānaṃ sāttvikaṃ smṛtam ||

That gift which is given to one who does nothing in return, knowing it to be a duty to give in a suitable place and time to a worthy person, is held to be Sattvic.

The gift that is given without thought of recompense, believing it should be made, in an appropriate place, at an opportune time, and to a deserving person—such a gift is pure.

Our plain-language meaning of this verse is waiting for scholar review.