https://vedabase.io/en/library/sb/4/30/36/
yas tu nārāyaṇaṁ devaṁ
brahma-rudrādi-daivataiḥ
samatvenaiva vīkṣeta
sa pāṣaṇḍī bhaved dhruvam
“One who considers Lord Nārāyaṇa on a level with great demigods like Lord Brahmā and Lord Śiva is immediately listed among nonbelievers.”
This is similar to the story of Nampaduvan in the Srivaishnavite tradition