Rishi: Traditional: connected with Aśvamedha liturgy; often transmitted under Yājñavalkya-lineage in Śukla tradition (specific ṛṣi not explicit in the given excerpt)
Devata: Devatā-complex: the officiants as functional powers of Yajña; ultimately Prajāpati/Yajña as the encompassing deity
Chandas: Mixed/Anuṣṭubh-like cadence in transmission; exact chandas requires full pada-count verification
The Hotṛ and the Adhvaryu, the summoner, the kindler of Agni, the grasper of the pressing-stones, and the praiser, the well-inspired,—by that sacrifice, duly ordered and well-offered, do ye fill up the portions (that are to be borne) unto the gods.