Śatapatha Brāhmaṇa ("of a hundred paths") 3.1.3.8

3.1.3.8

tadvai navanītam bhavati | ghṛtaṃ vai devānām phāṇṭam manuṣyāṇāmathaitannāhaiva ghṛtaṃ no phāṇṭaṃ syādeva ghṛtaṃ syātphāṇṭamayātayāmatāyai tadenamayātayāmnaivāyātayāmānaṃ karoti

It is fresh butter,--for melted butter (ghee) belongs to the gods, and creamy butter to men. Here, on the other hand, it is neither ghee nor creamy butter; it should rather be both ghee and creamy butter, for the sake of unimpaired vigour: by means of that which is of unimpaired vigour he accordingly makes him of unimpaired vigour.