Bhagavatapurana 11.25.11

11.25.11

yadā āśiṣa āśāsya māṃ bhajeta sva-karmabhiḥ /
taṃ rajaḥ-prakṛtiṃ vidyāt hiṃsām āśāsya tāmasam //

11. When, for the sake of wealth and blessings, he worships Me by doing the duties laid down for him, he should be known as a person of Rajasa nature: and he who thinks of harm to others should be known as one of Tamasa nature.