Original text
ॐ नमो भगवते वासुदेवाय
IAST transliteration
oṁ namo bhagavate vāsudevāya
Meaning
The mantra brings together remembrance and surrender. "Vasudeva" may be understood devotionally as Shri Krishna and philosophically as the divine presence dwelling in all beings.
Source
Widely transmitted in Vaishnava traditions; commonly known as a dvadashakshari (twelve-syllable) mantra.