Bhagavad Gita · Chapter 17: The Three Kinds of Faith

Bhagavad Gita 17.21

yattu pratyupakārārthaṃ phalamuddiśya vā punaḥ | dīyate ca parikliṣṭaṃ taddānaṃ rājasaṃ smṛtam ||

But a gift that is given in the hope of a return, or with some reward in view, or given grudgingly, is held to be a gift of passion.

Modern context

A rajasic gift expects something back, or a reward, or is given grudgingly. The last point is subtle. Giving with resentment, while inwardly counting the cost, poisons the gift. Better to give less with an open heart than more with a closed one. The quality of giving matters as much as the quantity.