Bhagavatapurana 10.32.19

10.32.19

bhajato 'pi na vai kecid bhajanty abhajataḥ kutaḥ /
ātmārāmā hy āpta-kāmā akṛta-jñā guru-druhaḥ //

Indeed some pay no regard even to those that worship them. Then how could they be expected to favour those that do not seek them at all?

I. These are of four classes:— 1. Those that find delight only in Atman and know nothing of the external world. 2. Those that are accomplished of their purpose and, though conscious of external objects, have no longing for their enjoyment; 3 those that are too dull to understand the kindness done to them and 4. Those who wilfully do an evil turn to their benefactors (here ‘benefactors’ being considered ‘gurus’).

ures and (3) Those that are ungrateful, who go even to the extent of doing evil even to their benefactors.