Name #41 of 1000 · Viṣṇu Sahasranāma

महास्वनःmahāsvanaḥ

Mahasvana

He of the thundering voice — the Vedas are his breath

From shloka 5 · chapter Matsya

स्वयम्भूः शम्भुरादित्यः पुष्कराक्षो महास्वनः
अनादिनिधनो धाता विधाता धातुरुत्तमः
svayambhūḥ śambhurādityaḥ puṣkarākṣo mahāsvanaḥ
anādinidhano dhātā vidhātā dhāturuttamaḥ
verse 5

Also in this shloka: svayambhūḥ · śambhuḥ · ādityaḥ · puṣkarākṣaḥ · anādinidhanaḥ · dhātā · vidhātā · dhāturuttamaḥ