Bhagavatapurana 3.22.19

3.22.19

ato bhajiṣye samayena sādhvīṃ yāvat tejo bibhṛyād ātmano me /
ato dharmān pāramahaṃsya-mukhyān śukla-proktān bahu manye 'vihiṃsrān //

19. Therefore I shall accept this chaste lady on the condition that I shall be devoted to her till she bears the seed of my body; and afterwards I think of mostly devoting myself to the duties characterised by harmlessness such as *Sama* and *Dama* which distinguish Paramahamsas (which is the goal of Paramahamsas) and are the chief means directly taught by Vishnu of attaining wisdom.