Agniveshyagrihyasutra 3.1.2.12

3.1.2.12

dakṣiṇārdhapūrvārdhe hutvānuprahṛtya darvīmathānnamabhimṛśati pṛthivī te pātraṃ dyaurapidhānaṃ brahmaṇastvā mukhe juhomi brāhmaṇānāṃ tvā vidyāvatāṃ prāṇāpānayorjuhomyakṣitamasi mā pitṝṇāṃ kṣeṣṭhā amutrāmuṣmin loke pṛthivīṃ samantassame 'gnirupadraṣṭā dattasyāpramādāya ṛcaste mahimā \

Having offered in the southeastern half and having thrown in the ladle, he then touches the food: 'The earth is your dish, heaven is your lid; I offer you into the mouth of the Brahman; I offer you into the inhalation and exhalation of the Brahmins endowed with learning. You are imperishable; do not perish for the ancestors in yonder world. The earth is all around me; Agni is the overseer so that what is given is not neglected. The Ṛgveda verses are your greatness.