यो ह वै संपदं वेद सँ हास्मै पद्यते यं कामं कामयते श्रोत्रं वै संपच्छ्रोत्रे ही- मे सर्वे वेदा अभिसंपन्नाः सँ हास्मै प- द्यते यं कामं कामयते य एवं वेद ॥ ४ ॥
In plain words
Whoever truly knows attainment gets, in full, whatever he desires. And that attainment is hearing itself — because it's in hearing that the whole of the Vedas comes together and is held. Know this, and whatever you desire comes fully to pass for you.
Close to the Sanskrit
He who indeed knows Sampad (attainment) — whatever desire he desires comes fully to pass for him. The ear, verily, is Sampad; for in the ear all these Vedas are fully gathered and contained — whatever desire he desires comes fully to pass for him, he who knows thus. [4]