Śatapatha Brāhmaṇa ("of a hundred paths") 1.3.1.21

1.3.1.21

tadāhuḥ | nāntarvedyāsādayedato vai devānām patnīḥ samyājayantyavasabhā aha devānām patnīḥ karoti paraḥpuṃso hāsya patnī bhavatīti tadu hovāca yājñavalkyo yathādiṣṭam patnyā astu kastadādriyeta yatparaḥpuṃsā vā patnī syādyathā vā yajño vediryajña ājyaṃ yajñādyajña nirmimā iti tasmādantarvedyevāsādayet

Here now they say,--'He must not place it within the altar; for from that (butter) they make the oblation to the wives of the gods: he therefore excludes the wives of the gods from the company (of their husbands), and thereby his (the sacrificer's) wife becomes dissatisfied with her own husband.' Yâgñavalkya, however, said in reference to this point, 'Let it be so as it has been prescribed for the wife! who would care whether his wife may consort with other men?' 'As the altar is (part of the) sacrifice, and the butter is (part of the) sacrifice, I will build up the sacrifice from out of the sacrifice!' thus thinking, let him place it within the altar.