Bhagavad Gita Chapter 17 Verse 20

Gita 17.20

दातव्यम्, इति, यत्, दानम्, दीयते, अनुपकारिणे,
देशे, काले, च, पात्रे, च, तत्, दानम्, सात्त्विकम्, स्मृतम्।।20।।

Gita 17.20

Daatvyam’, iti, yat’, daanm’, deeyate, anupakaarine,
Deshe, kaale, ch, paatre, ch, tat’, daanm’, saattvikam’, smritam’ ||20||

Translation: (Daatvyam’) it is a duty to do charity (iti) with this belief (yat’) which (daanm’) charity (deshe ch kaale) situation/place and time (ch) and (paatre) on finding a person worthy of being given charity (anupkaarine) without any desire for reward in its return (deeyate) is given (tat’) that (daanm’) charity (saattvikam’) Satvik (smritam’) is said to be. (20)

Translation: It is a duty to do charity. A charity which is given with this belief on finding the situation and time and a person worthy of being given charity without any desire for reward in its return, that charity is said to be Satvik.