Shatapatha Brahmana 11.5.6.6

11.5.6.6

somāhutayo ha vā etā devānām yatsāmāni sa ya evaṃ vidvāntsāmānyaharahaḥ svādhyāyamadhīte somāhutibhireva taddevāṃstarpayati ta enaṃ tṛptāstarpayanti yogakṣemeṇa prāṇena re

And, verily, the Sâman-texts are Soma-offerings to the gods; and whosoever, knowing this, studies day by day the Sâman-texts for his lesson thereby satisfies the gods with Soma-offerings; and, being satisfied, they satisfy him by security of possession, by life-breath, by seed, by his whole self, and by all auspicious blessings; and rivers of ghee and rivers of honey flow for his Fathers, as their accustomed draughts.