17:21  

यत्तु प्रत्युपकारार्थं फलमुद्दिश्य वा पुनः ।
दीयते च परिक्लिष्टं तद्दानं राजसं स्मृतम् ॥१७- २१॥

yattu pratyupakaaraarthaM phalamuddishya waa punaH ।

diiyate cha parikliShTaM taddaanaM raajasaM smRRitam ॥१७- २१॥

Source: Automatic ITRANS Transliteration

Yet, that for gratitude or for the purpose of fruit in return,
And given with reluctance, that donation is remembered as raajasic.

Source: Milind S. Pandit

Charity that is given unwillingly, or to get something in return, or looking for some fruit, is called Raajasika charity.

Source: The Bhagavad-Gita: The Sacred Song

But charity performed with the expectation of some return, or with a desire for fruitive results, or in a grudging mood, is said to be charity in the mode of passion.

Source: Bhagavad Gita As It Is