Rishi: Traditionally attributed within the Pavamāna Soma corpus; specific rishi for 9.99 varies by Anukramaṇī tradition (often from Soma-seer lineages).
Devata: Soma Pavamāna (Soma in the act of purification)
Chandas: Likely Triṣṭubh (common in RV 9); requires full metrical verification against syllable count with accents.
Samhita Patha (Devanagari)
तमुक्षमाणमव्यये वारे पुनन्ति धर्णसिम् । दूतं न पूर्वचित्तय आ शासते मनीषिणः ॥