Śatapatha Brāhmaṇa ("of a hundred paths") 9.4.4.10

9.4.4.10

athainaṃ vimuñcati | āptvā taṃ kāmaṃ yasmai kāmāyainaṃ yuṅkte yajñāyajñiyaṃ stotramupākariṣyantsvargo vai loko yajñāyajñiyametasya vai gatyā enaṃ yuṅkte tadāptvā taṃ kāmaṃ yasmai kāmāyainaṃ yuṅkte

Having now obtained the wish for (the accomplishment of) which he yokes it (the altar), he unyokes it when about to bespeak the Yagñâyagñiya stotra,--for the Yagñâyagñiya is the heavenly world, and it is for the attainment of that (world) that he yokes it: thus (he unyokes it) after obtaining the wish for which he yoked it.