Chapter 10 · verse 25 · gita.yoga.org

Bhagavad Gita 10.25

महर्षीणां भृगुरहं गिरामस्म्येकमक्षरम्। यज्ञानां जपयज्ञोऽस्मि स्थावराणां हिमालयः

Among the great sages, I am Bhrigu; among words, I am the one syllable (Om); among sacrifices, I am the sacrifice of silent repetition; among the immovable things, I am the Himalayas.