Shatapatha Brahmana 4.1.1.16

4.1.1.16

pañcapañca kṛtvaḥ | paśukāma syābhiṣuṇuyādityāhuḥ pāṅktā paśavaḥ paśūnhaivāvarunddhe pañca vā ṛtavaḥ saṃvatsarasya saṃvatsaraḥ prajāpatiḥ prajāpatiryajñaḥ sa yāvāneva yajño yāvatyasya mātrā tāvantamevaitatsaṃsthāpayati so eṣā mīmāṃsaivetaraṃ tveva kriyate

'For one desirous of cattle he should press five times at each (turn),' so they say;--the cattle (animal victims) consist of five parts: he indeed gains cattle; and there are five seasons in the year; and Pragâpati is the year, and the sacrifice is Pragâpati thus as great as the sacrifice is, as great as is its measure, so great he thereby establishes it. This, however, is mere speculation: it is the other (manner) which is practised.