Bhagavad Gita 17.21

यत्तु प्रत्युपकारार्थं फलमुद्दिश्य वा पुन: |
दीयते च परिक्लिष्टं तद्दनं राजसं स्मृतम्

Translation

But charity given with reluctance, with the hope of a return or in expectation of a reward, is said to be in the mode of passion.