Bhagavatapurana 4.20.16

4.20.16

varaṃ ca mat kañcana mānavendra vṛṇīṣva te 'haṃ guṇa-śīla-yantritaḥ /
nāhaṃ makhair vai sulabhas tapobhir yogena vā yat sama-citta-vartī //

16. O Lord of men, ask of Me for a boon. I am bound to thee on account of thy qualities and piety (such as tranquillity, control of passions, etc..); indeed, I am not easily pleased and prevailed upon by

means of sacrifices or austerity; for, I am disposed by nature to be with those whose mind is serene and always the same (towards all things).