Jaiminīya (Talavakāra) Brāhmaṇa 1.29

1.29

sa tatassvadhāmeva hiraṇmayīṃ nāvaṃ samāruhya prajāpatessalokatāmabhiprayāti
pañcāhaṃ juhoti
viṃśatirāhutayassaṃpadyante
saviṃśo vai prajāpatiḥ
eṣa vai mṛtyuryatprajāpatiḥ prabhūmāneva nāma
tameva tābhirāhutibhiśśamayitvā nabho lokānāṃ jayati prajāpatiṃ devaṃ
devānām
prajāpaterdevasya sāyujyaṃ salokatāṃ samabhyārohati ya evaṃ vidvānagnihotraṃ
juhoti

Mounting the Svadhā as a golden boat, he journeys from there toward co-existence with Prajāpati.
He offers for five days.
Twenty oblations are completed.
Twenty-part indeed is Prajāpati.
This indeed is death, which is named Prajāpati the Abundant.
Having pacified him by means of those oblations, he conquers the sky among worlds, Prajāpati among gods.
He ascends to union, to co-existence with the god Prajāpati, who, knowing thus, offers the fire-offering.