Śatapatha Brāhmaṇa ("of a hundred paths") 3.6.4.5

3.6.4.5

tamevamabhimṛśya japati | paścādvaiva prāṅ tiṣṭhannabhimantrayate 'tyanyān agāṃ nānyān upāgāmityati hyanyāneti nānyānupaiti tasmādāhātyanyān agāṃ nānyān upāgāmiti

That he touches while muttering (Vâg. S. V, 42),--or he salutes it while standing behind it with his face towards the east,--'I have passed over the others, I have not gone nigh the others--' he does indeed pass over others and does not go near to others: wherefore he says, 'I have passed over the others, I have not gone nigh the others.'