Yōga Sūtras
Yōga Sūtra 2.15
pariṇāmatāpasaṁskāraduḥkhairguṇavr̥ttivirōdhācca duḥkhamēva sarvaṁ vivēkinaḥ।
The resulting heat and the imprints on mind, the experienced frustration caused by resisting actions born out of qualities, all are misery only for one who has discrimination.