Jaiminīya (Talavakāra) Brāhmaṇa 2-8.320.p2

2-8.320.p2

tasya jyotiragniṣṭomo gaurukthya āyurukthyo jyotiragniṣṭoma āyuratirātro

Its [order is]: the Jyotis as an Agniṣṭoma, the Go as an Ukthya, the Āyus as an Ukthya, the Jyotis as an Agniṣṭoma, the Āyus as an Atirātra;