Mundaka Upanishad Verse 3.2.9
Sanskrit
स यो ह वै तत् परमं ब्रह्म वेद ब्रह्मैव भवति नास्याब्रह्मवित्कुले भवति ।
तरति शोकं तरति पाप्मानं गुहाग्रन्थिभ्यो विमुक्तोऽमृतो भवति ॥ ९ ॥
Transliteration
sa yo ha vai tat paramaṃ brahma veda brahmaiva bhavati nāsyābrahmavitkule bhavati |
tarati śokaṃ tarati pāpmānaṃ guhāgranthibhyo vimukto’mṛto bhavati || 9 ||
Translation
He who knows that highest Brahman becomes even Brahman; and in his line, none who knows not the Brahman will be born. He crosses grief and vice, and being freed from the knot of the heart, becomes immortal.
Reference: Mundaka Upanishad

Muni's Play