Bhagavatapurana 12.8.46

12.8.46

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tasmāt taveha bhagavann atha tāvakānāṃ $ śuklāṃ tanuṃ sva-dayitāṃ kuśalā bhajanti &
tasmāt taveha bhagavann atha tāvakānāṃ $ śuklāṃ tanuṃ sva-dayitāṃ kuśalā bhajanti &
yat sātvatāḥ puruṣa-rūpam uśanti sattvaṃ % loko yato 'bhayam utātma-sukhaṃ na cānyat //

46. Therefore, those that have understood the truth, O Glorious Lord, worship here only Thy pure manifestation (known as Sri Narayana) as well as the pure avatar of Thine amsas as Nara beloved of Thee; for Satvatas (the gods or Bhagavatas) believe that Satva is the true essence of the Perfect Person and that, only through Satva, the region of Vaikuntah, the state of absolute fearlessness, the realisation of one’s blissful nature can be attained to and not through any other.