Rishi: Traditionally associated with Hiraṇyagarbha hymn seers (ṛgvedic background; anukramaṇī varies)
Devata: Hiraṇyagarbha / Prajāpati (as resolved in brāhmaṇa exegesis)
Chandas: Triṣṭubh
Samhita Patha (Devanagari)हि॒र॒ण्य॒ग॒र्भः सम॑वर्त॒ताग्रे॑ भू॒तस्य॑ जा॒तः पति॒रेक॑ आसीत् । स दा॑धार पृथि॒वीं द्यामु॒तेमां कस्मै॑ दे॒वाय॑ ह॒विषा॑ विधेम
Transliterationhiraṇyagárbhaḥ sám avartatā́gre bhūtásya jātáḥ pátir éka āsīt | sá dā́dhāra pṛthivī́ṃ dyā́m utémā́ṃ kásmai devā́ya havíṣā vidhema ||
Translationਹਿਰਣ੍ਯਗਰਭ ਆਦਿ ਵਿੱਚ ਉਤਪੰਨ ਹੋਇਆ; ਭੂਤ (ਉਦਭਵਿਤ) ਜਗਤ ਦਾ ਜਨਮਿਆ ਇਕੋ ਪਤੀ (ਸਵਾਮੀ) ਸੀ। ਉਸ ਨੇ ਇਸ ਧਰਤੀ ਨੂੰ ਅਤੇ ਉੱਪਰਲੇ ਦ੍ਯੌ (ਆਕਾਸ਼) ਨੂੰ ਧਾਰਿਆ; ਅਸੀਂ ਕਿਹੜੇ ਦੇਵ ਨੂੰ ਹਵਿਸ ਨਾਲ ਉਪਾਸਨਾ ਅਰਪਣ ਕਰੀਏ?
Padapatha (Word Analysis)हिरण्य-गर्भः । सम्-अवर्तत । अग्रे । भूतस्य । जातः । पतिः । एकः । आसीत् । सः । दाधार । पृथिवीम् । द्याम् । उत । इमाम् । कस्मै । देवाय । हविषा । विधेम ।
Word by Wordहिरण्यगर्भःHiraṇyagarbha (the Golden Embryo/Creator) सम्together, completely (prefix) अवर्ततcame into being / arose अग्रेin the beginning, at the front/first भूतस्यof what has become / of the created being विधेमmay we offer / should we perform 
Entities MentionedB
Brahman (as first principle) Viniyoga (Ritual Application)