Kauṣītaki (Śāṅkhāyana) Brāhmaṇa 17.3.31

17.3.31

vihṛtayā triṣṭubhā yajed iti ha eka āhuḥ /

xvii. 4. Some say ‘He should use an interpolated Triṣṭubh as offering verse’. ‘For indeed the courser.—Thou hast drunk of the ancient draughts, O lord of the bays.—For the courser is a courser.—Now let this pressing be thine only.—The courser is a bearer.—Drink the Soma rich in honey, O Indra.—For the courser is active.—Do thou ever, O strong one, pour into thy belly.’ But the rule is not to interpolate. The offering verses are duly prepared dishes for the gods; verily thus with a duly