Katha Upanishad Chapter 4 Verse 15
Original Verseयथोदकं शुद्धे शुद्धमासिक्तं तादृगेव भवति । एवं मुनेर्विजानत आत्मा भवति गौतम ॥ १५ ॥
yathodakaṃ śuddhe śuddham āsiktaṃ tādṛg eva bhavati | evaṃ muner vijānata ātmā bhavati gautama || 15 ||