Narasimhapurana 64.82

64.82

tato 'ham āsaṃ viprendra nārāyaṇaparāyaṇaḥ
namo nārāyaṇāyeti ye vidur brahma śāśvatam //

I then became wholly devoted to Nārāyaṇa, O best of the twice-born. / Those who know the eternal Brahman as “Obeisance to Nārāyaṇa,”