BṚHADĀRAṆYAKA UPANISHAD · 6.1.4

यो ह वै संपदं वेद सं हास्मै पद्यते यं कामं कामयते ।
श्रोत्रं वै संपत् ।
श्रोत्रे हीमे सर्वे वेदा अभिसंपन्नाः ।
सं हास्मै पद्यते यं कामं कामयते ।
य एवं वेद ॥

yo ha vai saṃpadaṃ veda saṃ hāsmai padyate yaṃ kāmaṃ kāmayate ।
śrotraṃ vai saṃpat ।
śrotre hīme sarve vedā abhisaṃpannāḥ ।
saṃ hāsmai padyate yaṃ kāmaṃ kāmayate ।
ya evaṃ veda ॥

He who knows success, whatever desire he desires, it succeeds to him. The ear indeed is success. For in the ear are all these Vedas successful. He who knows this, whatever desire he desires, it succeeds to him.

F. Max Müller · The Upanishads, Sacred Books of the East 15 (1884)