Bhagavad Gita 2.46

यवनर्थ उदपाणे सर्वत: संप्लुतोदके |
तावांसर्वेषु वेदेषु ब्राह्मणस्य विजानत:

Translation

Whatever purpose is served by a small well of water is naturally served in all respects by a large lake. Similarly, one who realizes the Absolute Truth also fulfills the purpose of all the Vedas.