Kauṣītaki (Śāṅkhāyana) Brāhmaṇa 7.2.5

7.2.5

so ayam śarīreṇa eva dīkṣamāṇena sarvān kāmān āpnoti / (soma: dīkṣaṇīyeṣṭi)

Thus, with the body being consecrated, he obtains all desires;