Here is the Sanskrit anuvad, Hindi anuvad, and English translation of Shraddhatraya-Vibhaga Yoga Chapter 17, Verse 17.20.
Sanskrit
दातव्यमिति यद्दानं दीयतेऽनुपकारिणे । देशे काले च पात्रे च तद्दानं सात्त्विकं स्मृतम् ॥ १७.२० ॥
Hindi
दान देना ही कर्तव्य है —- ऐसे भाव से जो दान देश तथा काल और पात्र के प्राप्त होने पर उपकार न करने वाले के प्रति दिया जाता है, वह दान सात्विक कहा गया है |
English
O Arjuna, hear now that what I have to say about gifts: A pure gift is that which is given with purity and kindness in the heart, given to the right person at the right time, given in the proper place, and above all when we expect nothing in return for the gift.