Bhagavad Gita Chapter 17.21
yat tu pratyupakārārthaḿ
phalam uddiśya vā punaḥ
dīyate ca parikliṣṭaḿ
tad dānaḿ rājasaḿ smṛtam
Translation 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.