Agnipurana 380.55

380.55

manodhṛtiḥ sāttvikī syāt prītikāmeti rājasī /
tāmasī tu praśokādau mukhaṃ sattvāttadantagaṃ //

Resolve of the mind is sāttvika; that pursuing pleasure and desire is rājasika; / but that [persisting] in grief and the like is tāmasika. Happiness arising from sattva reaches its end [in bliss];